A vocal opponent of Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE and vulnerable Arizona Republican Sen. Jeff Flake Jeffrey (Jeff) Lane FlakeJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Republican former Michigan governor says he's voting for Biden Maybe they just don't like cowboys: The president is successful, some just don't like his style MORE praised Hillary Clinton Hillary Diane Rodham ClintonBiden leads Trump by 36 points nationally among Latinos: poll Democratic super PAC to hit Trump in battleground states over coronavirus deaths Battle lines drawn on precedent in Supreme Court fight MORE's VP pick on Friday night.

"Trying to count the ways I hate @timkaine. Drawing a blank," Flake tweeted, adding that Kaine was a "good friend."

Trying to count the ways I hate @timkaine. Drawing a blank. Congrats to a good man and a good friend. — Jeff Flake (@JeffFlake) July 23, 2016



Clinton's official account retweeted Flake's post.

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Pennsylvania Sen. Pat Toomey, another vulnerable Republican, also sent out a statement lauding Kaine.

"While Hillary Clinton would be a disaster as president, I have high regard and respect for Tim Kaine Timothy (Tim) Michael KaineNames to watch as Trump picks Ginsburg replacement on Supreme Court Barrett seen as a front-runner for Trump Supreme Court pick Biden promises Democratic senators help in battleground states MORE," Toomey said.

Woah. Vulnerable Pennsylvania Republican Senator Pat Toomey is praising Kaine (while ripping on Hillary) pic.twitter.com/iGKYwhfKQp — Matt Laslo (@MattLaslo) July 23, 2016

South Carolina Sen. Lindsey Graham Lindsey Olin GrahamMcConnell locks down key GOP votes in Supreme Court fight Will Republicans' rank hypocrisy hinder their rush to replace Ginsburg? Momentum growing among Republicans for Supreme Court vote before Election Day MORE, who was among the crowded field of Republican candidates for president, tweeted that he found Kaine and Indiana Gov. Mike Pence Michael (Mike) Richard PenceMcConnell locks down key GOP votes in Supreme Court fight Momentum growing among Republicans for Supreme Court vote before Election Day Sunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election MORE "more palatable" than their presidential nominee counterparts, Clinton and Trump.

I find the VP candidates -- Governor Mike Pence and Senator Tim Kaine -- more palatable than the presidential nominees. — Lindsey Graham (@LindseyGrahamSC) July 23, 2016

The Republican National Committee quickly blasted the ticket, although Chairman Reince Priebus didn't aim any attacks specifically at Kaine other than to say he "holds positions that she’s spent the entire primary trying to get to the left of."

"A Clinton-Kaine administration will push our country further down the path President Obama has led us on and that has made us less safe, less prosperous, and less free. More taxes, more debt, more government and more leading from behind on the global stage will not deliver the turnaround our country desperately needs. Americans have had enough of the failed Democrat status quo," Priebus said.