"There were a lot of differences including party, height, age…you name it…but somehow we always looked for common ground," said U.S. Senator Amy Klobuchar.
"I don't mean to malign Joe, but Joe told me he didn't believe her," former Senator Orrin Hatch said.
GOP Senators are dismissing Trump's suspected campaign finance crimes.
"I don't understand what kind of environment you're working in when that would be acceptable and then you could come to work the next day and still have a job," Meghan McCain said.
The senator's comments were "just insensitive and again, it's not appreciated at this moment."
"To be fair, he's the best president I've served 'under' in terms of line of succession," Hatch tweeted.
Orrin Hatch tweeted that he was "grateful" for the "great Christmas honor" although the Salt Lake Tribune slammed the longtime senator.
The senator said CHIP would pass and that he wanted to help people who would help themselves if they could.
The division in the Republican party could be enough to fracture it permanently, said Clayton. It's possible that we soon see a Republican-centrist third-party emerge.
The Speaker of the House's "zero legislative successes" have put his party at risk, say Democrats.
Biden has not ruled out running for president in the 2020 election.
It was the second request for Trump's returns by Senate Democrats in as many weeks, part of a Democratic campaign to pressure Republicans in Congress into obtaining the documents.
Only an illegal hack of the IRS would result in the release of the returns.
Orrin Hatch, a Republican whose support will be crucial, said negotiators might have to go back to the table.