FILE--In this Friday, Oct. 11, 2013 file photo, Sen. Bob Corker, R-Tenn., speaks to reporters on Capitol Hill in Washington about the government stalemate. In a surprise announcement, Tuesday, Sept. 26, 2017, the two-term lawmaker says he will not seek re-election in 2018. (AP Photo/J. Scott Applewhite, file)
FILE–In this Friday, Oct. 11, 2013 file photo, Sen. Bob Corker, R-Tenn., speaks to reporters on Capitol Hill in Washington about the government stalemate. In a surprise announcement, Tuesday, Sept. 26, 2017, the two-term lawmaker says he will not seek re-election in 2018. (AP Photo/J. Scott Applewhite, file)(

Republican Sen. Bob Corker said he stands by his comments that Donald Trump hasn’t shown the stability or competency to succeed as president, and that Trump’s criticism of Republican congressional leaders is fueling resentment within the party.

Corker, a former Trump ally who announced on Sept. 26 that he won’t seek re-election in 2018 as a Tennessee senator, said on NBC’s “Meet the Press” on Sunday that Trump has made positive changes in the White…