Sen. Bob Corker (R-TN), who has been mentioned as a possible running mate for Donald Trump, told reporters that Trump’s speech following the worst mass shooting in American history “wasn’t the type of speech one would expect” from a presidential candidate, USA Today reports.

Said Corker: “In an effort to be constructive, I have offered public encouragement at important times, but I must admit that I am personally discouraged by the results.”

Mike Allen: “Republican insiders are buzzing about Sen. Bob Corker (R-TN), chair of Senate Foreign Relations, as an attractive, plausible vice-presidential pick for Trump. Corker — age 63, to Trump’s 69 — surprised many in Washington by lavishing on-camera praise on Trump’s foreign-policy speech two weeks ago. Last week, Corker told USA Today‘s Mary Troyan, who covers Tennessee for Gannett, that he ‘offered to help Donald Trump develop a foreign policy platform, making him one of the few senators to publicly embrace Trump … Trump called him last week and he and Trump’s campaign staff have talked since then.'”

A Republican who knows Corker well said: “He’s an independent guy – kind of a tough guy – who’s not afraid to swim upstream. He’s frustrated by being in the Senate and not getting anything done. I think he’d really lean into this. He’s not afraid to buck the old guard. And he’s no dummy: He jumped out on the Trump thing early.”