CNN's Kate Bolduan on Wednesday reminded her viewers that Trump allies' defenses of the president throughout the Ukraine scandal have continued to evolve after new facts emerge that undercut their older defenses.

While talking with the New Yorker's Susan Glasser, Bolduan delivered an exhausted list of all the failed defenses that the president and his supporters have made to justify Trump's efforts to push Ukraine to investigate his political opponents.

"First it was the president was trying to root out corruption when it came to Ukraine," she began. "Then it was there was no direct ask coming from the president. Then it was the whistleblower can't be trusted, then it was Schiff helped the whistleblower write the complaint so it can't be trusted, and then it was the president was joking, Republicans said, when he said on camera that he would like to see investigations. Then it was there was no quid pro quo because Ukraine didn't know the aid was being withheld... and now it's the process is unfair, so you can't impeach."

Former Rep. Mike Rogers (R-MI), who previously served as the chairman of the House Intelligence Committee, said that the Trump White House's angry attacks on ambassador Bill Taylor reek of desperation.

After CNN's Jim Sciutto read the White House's statement accusing Taylor of being a "radical unelected bureaucrat," Rogers dismissed the statement as the act of a cornered administration.

"Bill Taylor is a well respected diplomat over his decades of service to the United States," he said. "When you go on this kind of extreme shouting, hair-on-fire criticism, you are running out of game plan. That's exactly what that tells me."