NEW YORK (CBSNewYork/AP) — President Barack Obama said there is “more than enough time” for the Senate to consider a nomination to the Supreme Court this year, and he intends to move ahead with his choice.

“The Constitution is pretty clear about what is supposed to happen now, when there is a vacancy on the Supreme Court, the president of the United States is to nominate someone, the Senate is to consider that nomination and either they disapprove that nominee or that nominee is elevated to the Supreme Court,” the president said, speaking during a news conference at the conclusion of his summit meetings with leaders of Southeast Asian nations in Rancho Mirage, California.

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Obama downplayed a question about if he will appoint a new Supreme Court justice during Congress’ recess, stating that he expects there to be hearings and a vote.

“I intend to nominate, in due time, a very qualified candidate,” Obama told reporters.

The president took issue with the Senate Republicans threatening to not hold a nomination hearing following the weekend death of Justice Antonin Scalia.

“This will be a test, one more test, of whether or not norms, rules, basic fair play can function at all in Washington these days. This is not just the Supreme Court, we have consistently seen a breakdown in the functions of government because the Senate will not confirm well qualified nominees,” Obama explained.

Obama shot back at Republicans who want to wait for a new justice to be appointed by the next president.

“This is the Supreme Court — the highest court in the land. It’s the one court where we would expect elected officials rise above day-to-day politics and this will be the opportunity for the senators to do their job. Your job doesn’t stop until your voted out or until your term is expired,” the president said.

Obama also brought up Justice Anthony Kennedy getting confirmed during former President Ronald Reagan’s last year in office.

“They did the right thing, they confirmed him,” he said.

Sen. Charles Grassley, R-Iowa, said he backs Majority Leader Mitch McConnell’s view that Obama’s successor should make the nomination of a lifetime appointment. But Grassley didn’t rule out holding confirmation hearings and a vote by his panel on an Obama selection.

“I would wait until the nominee is made before I would make any decision,” Grassley said Tuesday in a conference call with Iowa radio reporters. “In other words, take it a step at a time.”

Asked if he thought the controversy over filling the court vacancy might endanger his re-election chances this fall, Grassley said, “I think I have a responsibility to perform and I can’t worry about the election. I’ve got to do my job as a senator, whatever it is. And there will be a lot of tough votes between now and the next election.”

The battle lines were set almost immediately in the hours after Scalia’s death on Saturday.

Senate Republicans, led by McConnell and including vulnerable GOP senators up for re-election this year, said Election Day in November will give voters a say in who replaces Scalia.

Democratic presidential candidate Hillary Clinton made pointed comments about Republicans trying to block Obama during a speech in Harlem on Tuesday.

“Some are even saying he doesn’t have the right to nominate anyone. As if somehow he’s not the real president,” Obama’s former secretary of state said. “You know, that’s in keeping with what we’ve heard all along, isn’t it? Many Republicans talk in coded racial language about takers and losers. They demonize President Obama and encourage the ugliest impulses of the paranoid fringe. This kind of hatred and bigotry has no place in our politics or our country.”

Senate Democrats countered that Obama is president until Jan. 20, 2017 and has every constitutional right to make the selection and the Senate should do its job and consider the choice.

Sen. Chuck Schumer, D-N.Y., said on Sunday the president shouldn’t be impeded on a Supreme Court nominee, but in July 2007, he had a different tune. At that time, the senator from New YOrk said the court was dangerously imbalanced and that Congress should vote down any nominations in the last 18 months of former President George W. Bush’s administration.

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“Given the track record of this president and the experience of obfuscation at the hearings — with respect to the Supreme Court at least — I will recommend to my colleagues that we should not confirm a Supreme Court nominee, except in extraordinary circumstances.”

Obama has said he will nominate a replacement in due time. His Democratic allies made it clear that denying the president that right would be an unprecedented step and argued it would enshrine the GOP as “the most nakedly partisan, obstructionist and irresponsible majority in history.”

“By ignoring its constitutional mandate, the Senate would sabotage the highest court in the United States and aim a procedural missile at the foundation of our system of checks and balances,” Senate Minority Leader Harry Reid, D-Nev., said in a scathing op-ed in Tuesday’s Washington Post.

The No. 3 Democrat in the Senate, Chuck Schumer of New York, said Tuesday that he expects Obama to select a consensus candidate who could get bipartisan support and predicted that a “huge public outcry” would force McConnell to back down.

Sen. Patrick Leahy of Vermont, the top Democrat on the Judiciary Committee, said, “refusing to do anything means you’re voting maybe. That’s a cowardly way out.” In Richmond, Vermont, Leahy said the last time the court was down a jurist was during the Civil War.

Sen. Thom Tillis, R-N.C., a member of the Judiciary Committee, cautioned Republicans Tuesday against flatly ruling out any Obama nominee because of the possibility that the president selects someone who matches Scalia’s conservative views.

“That’s unlikely to happen, but I think we fall into the trap if we just simply say `Sight unseen,’ we fall into the trap of being obstructionist,” Tillis said on “The Tyler Cralle Show” on WAAV in Wilmington, North Carolina.

Tillis said if Obama picks a candidate who embraces the president’s views, “then we’ll use every device available to block that nomination, wait till the American people voice their vote in November and then move forward with the nomination after the election.”

Republican Sens. Rob Portman of Ohio, Ron Johnson of Wisconsin and New Hampshire’s Kelly Ayotte — vulnerable incumbents — echoed McConnell.

Sen. Ted Cruz, the Texan who has practiced before the high court and is seeking the Republican presidential nomination, has vowed to filibuster any nominee.

Senate Republicans have the numbers in this consequential “advice and consent” fight.

Chris Edelson, a constitutional scholar and American University professor, told CBS2’s Dick Brennan that Republicans are within their right to not do anything, but that it could backfire politically.

“It could play into this theme, Republicans as obstructionists,” Edelson said. “This isn’t the first time this has happened — the government shutdown, debt ceiling.”

Republicans outnumber Democrats 11-9 on the Judiciary Committee, which would hold confirmation hearings and vote on whether to send the nominee to the full Senate. The GOP holds the majority, 54-46, and Democrats face an almost insurmountable task in trying to get 14 Republicans to join them in breaking a certain filibuster.

Beyond math is the political calculus. Control of the Senate is at stake this election and Democrats looking to unseat Portman and Sen. Pat Toomey of Pennsylvania — along with Ayotte and Johnson — have seized on their call to wait until next year.

In a fundraising appeal, Ohio Democrat Ted Strickland said Portman “has a clear choice to make: He can look out for his party and D.C. special interests by holding back President Obama’s nominee, or he can do his job for the people of Ohio.”

In New Hampshire, Democratic Gov. Maggie Hassan criticized Ayotte and argued that Obama’s constitutional right to nominate isn’t suspended in his last year in office. In Pennsylvania, three Democrats looking to take on Toomey railed against the partisanship over senatorial responsibility.

House Speaker Paul Ryan, R-Wis., whose chamber plays no formal role in the process, backed McConnell on Tuesday. He told the Milwaukee Journal Sentinel that Republicans would be justified to not fill a Supreme Court vacancy “knee deep into a presidential election.”

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