Rand and Lee should publicly lead a campaign to give anyone in the House a political cover and 'courage', but yes, Impeachment starts in House, thus Amash should draw up articles of Impeachment, as Rand & Lee try him in the Senate, later on.
but like I said, while the probability is remote, if it were to become reality, it can look a bit politically expedient if Rand were to run in 2016 with Lee, though hopefully Judge Nap.
regardless, it's the right thing to do.
I'd like to think someone from the liberty movement in govt (Rand, Amash, Massie, et al) would do a significant, even if symbolic, 'right thing,' even if we all know we're on the last minute of the sinking ship that is the USS-USSA.
Predictions in due Time...
"Let it not be said that no one cared, that no one objected once it's realized that our liberties and wealth are in jeopardy." - Dr. Ronald Ernest Paul