Hillary Clinton and Sen. Tim Kaine at a July 15 campaign rally in Annandale, Va. (Pete Marovich/Bloomberg News)

The runners-up in Hillary Clinton’s veepstakes have started to rally around her pick of Tim Kaine as a running mate, in a bid to show party unity heading into the Democratic National Convention.

With a few exceptions, most of those mentioned as possible picks had weighed in on social media or elsewhere by Saturday morning to praise the senator from Virginia, often in effusive terms, as a vice-presidential candidate.

Among those notably silent, however, was Sen. Elizabeth Warren (Mass.), a favorite of the party’s progressive wing, among which there was some grumbling about Kaine’s pick.

Other runners-up besides Warren who remain silent, as of midmorning Saturday, include Agriculture Secretary Tom Vilsack and James Stavridis, a retired Navy admiral.

By contrast, Sen. Cory Booker (N.J.) was quick to react shortly after Kaine was announced Friday night, offering a Biblical play on words on Twitter: “KAINE IS ABLE!!!”

On Saturday morning, Booker also responded on Twitter to a user who said he had “lost faith” because Booker was not Clinton’s pick and suggested he wouldn’t vote for the ticket in November.

“Sincerely, Tim Kaine is 1 of the most honorable men in politics,” Booker wrote in response. “I admire & am inspired by him, give them your vote.”

Labor Secretary Tom Perez, another person seriously considered by Clinton, also trumped Clinton’s choice, recalling in a statement that “the first conversation I had with Tim Kaine was about our shared love of civil rights law.”

“He is a great man, and he will make an even greater vice president,” Perez said. “As a proud progressive, I can’t wait to vote for him in November.”

Sen. Sherrod Brown (Ohio), meanwhile, said on Twitter that Kaine “brings knowledge and experience to what is already the most qualified Presidential ticket in my lifetime.”

On his Twitter account, Colorado Gov. John Hickenlooper called Kaine a “great choice,” saying he is “one of America’s hardest working, optimistic, experienced public servants.”

Housing Secretary Julian Castro touted Clinton-Kaine as “a winning ticket for America,” including the hashtag #ImWithThem.

And Rep. Xavier Becerra (Calif.), a senior member of the Congressional Hispanic Caucus, said on Twitter that he is “proud to tight for our #ClntonKaine ticket!”