Trey Gowdy was on Fox and said he has seen all of Comey’s memos and none of them would show Trump tried to obstruct justice.... He even said the memos would work best for the defense not the prosecutors.
Correct. Rush is hypothesizing a worst case scenario, using the assumption Trump was somewhere plausibly close to obstruction. Most likely Trump was not. Why would he know Flynn lied to investigators, before the Comey memo meetings? The timing seems off. Even if he did, “pressure” on Comey is (a) a feeling (b) unprovable (c) 100% legal.
BUT... this is not about getting TRUMP to court (actually prosecuting him for a particular crime). It is about a show trial on TV and the Internet to get the public to support a call for impeachment.