I don't see that it's proven Trump was going to fire Comey before Rosenstein's report. EVERYTHING reported about Trump is "anonymous sources", which when it is anonymous that much of the time, means it's fake news that doesn't really have any sources.
And assuming conversely it was true, how reputable is Rosenstein if he would just abandon all integrity and cater his report to whatever Trump was demanding? Leaving Rosenstein no more reputable than the liberal hate-Trump/destroy-Trump mainstream media.
Finally, the indictment of Russians yesterday is widely seen as a vindication of Trump. 1) the Russian conspiracy began in 2014, way before Trump ever announced as a candidate. Before even Trump himself knew he would run! 2) With these 13 indictments of Russian individuals and groups, there is still not the slightest evidence, after roughly 18 months of investigation and a Special Investigation (Meuller), NOT THE SLIGHTEST evidence that that gives even any whiff of Trump being guilty of anything.
and 3) Still waiting for an investigation of the DNC and the Hillary Clinton campaign, where all the evidence, illegal FISA warrants, FusionGPS, Christopher Steele, Uranium One, illegal private server and Clinton Foundation millions in foreign donations, actually leads.
Liberals who bemoan discrimination, intolerance, restraint of Constitutional freedoms, and promotion of hatred toward various abberant minorities, have absolutely no problem with discriminating against, being intolerant of, restricting Constitutional freedoms of, and directing hate-filled scapegoat rhetoric against conservatives.
EXACTLY what they accuse Republicans/conservatives of doing, is EXACTLY what liberals/Democrats do themselves, to those who oppose their beliefs.