"The party was shaken by that," Scott Reed said. "We're all worried," he added.
"As expected, the right-wing will impugn someone's character," Senator Mazie Hirono said.
"We have 10 years to cut carbon emissions in half. If we don't, scenes like this can get much worse," Ocasio-Cortez tweeted, promoting the Green New Deal.
The Washington Post changed its headline three times having come under fire for the obituary's wording.
"This is like presenting a case to a grand jury, which is never done in public," Andrew Napolitano explained.
"I am not completely convinced that it was a bad idea to get them out of harm's way," John Cornyn said of U.S. troops in Syria.
"I'm proud that over 30 members of Congress, including our whip, Steve Scalise, walked into that room," GOP congressman Alex Mooney said, "and demanded transparency and justice for our president."
Survey from American Jewish Committee released ahead of one-year anniversary of Tree of Life synagogue shooting.
Joe Scarborough says GOP senators prefer to "talk about policy" and not the president's attempts to "loot the federal treasury to make hundreds of thousands of dollars" at his resorts.
"We're in trouble," Steve Schmidt said in a Monday interview. "You see America in retreat, literally."
William Woods, former Republican candidate for Governor of Kentucky, on Monday threw his support behind Democratic candidate Kentucky Attorney General Andy Beshear.
"Republicans in Congress, they don't like [Trump]," Joe Walsh said. "They don't fear him, they don't respect him. They do believe he's incompetent, they do believe he's a moron."
"These [Republican] members are in a situation where they just can't defend the indefensible," former Representative Charlie Dent said.
"I think it's terrible. I don't agree with any of it," Francis Rooney said. "But they're derogating the work of our paid foreign service."
"If we abandon the Kurds, ISIS will come back and if there's an attack here or against our allies, President Trump owns it," the Republican senator said.
"This is a complete and utter national security disaster in the making and I hope President Trump will adjust his thinking," the Republican senator tweeted.
Donald Trump and his supporters have repeatedly argued that the impeachment inquiry is overtly "partisan" and a "witch hunt."
Ronna McDaniel, GOP chairwoman and niece of Mitt Romney, has accused Joe Biden's son Hunter of nepotism in his business dealings with Ukraine.
Trump gave Turkey the green light to invade northeastern Syria after a phone call with Turkish President Erdoğan last Sunday.
"He doesn't try to do it covertly," Senator Kevin Cramer of North Dakota told CNN.
"I don't understand how a president that claims he's the toughest President ever would do such a weak move like this," Representative Adam Kinzinger said.
"No foreign government should ever be involved in a U.S. election in any way," Representative Adam Kinzinger told Fox News.
The governor says he is "skeptical" of the impeachment inquiry into President Trump's dealings with Ukraine.
"It is horrifying for President Trump to ask foreign governments to interfere in a U.S. election," Chris Truax, RRL's legal adviser, told Newsweek.
Mitt Romney, Susan Collins and Rob Portman are part of a small group of GOP Senators who have pushed back against Trump's actions and remarks.
"You'll have a very Democratic Senate next year," former Massachusetts Governor Bill Weld said.
"By abandoning the Kurds we have sent the most dangerous signal possible – America is an unreliable ally," the Republican senator from South Carolina argued.
"I think he honestly believes his political self-interest is the nation's interests," the former Hewlett-Packard CEO said of President Donald Trump in an interview for the "Recode Decode" podcast.
"We were devoted to the Constitution," Linda Chavez said. "And what I see happening now is people who are absolutely abrogating their duty.
"But I wouldn't be surprised if it's even more than that," Representative Brendan Boyle said.