Maybe the White House is telling the truth here, but I don’t believe it. How can anybody believe it?The thing to keep in mind is that this Dumpster fire is entirely of Trump’s own making. Maybe Comey deserved to be fired. If so, you don’t fire him in the middle of this Russia investigation, you don’t fire him in a dirty way guaranteed to raise everyone’s suspicions, and you sure don’t lie about it, and send your people (Pence, Sanders, et al.) out to lie about it.

Source: Trump: An Unusually Bad Liar | The American Conservative

And there it is: the real issue.

Unfit. To. Be. President.

The longer Trump stays in office with Republican support, the faster that any position with a conservative taint will lose legitimacy in the American dialogue.