GOP congressman wants independent Russia probe after "bizarre" Trump quote

This is Rep. Justin Amash, a libertarian Republican from Michigan. He wants an independent Russia probe, and he's pointing to a Trump paragraph in the letter firing Comey:

"While I greatly appreciate you informing me, on three separate occassions, that I am not under investigation, I nevertheless concur with the judgment of the Department of Justice that you are not able to effectively lead the Bureau."