Why do you think the Republicans will have 55 seats after the election? Have you looked at the polls? Then once you decide how many seats the Republicans will have, you must subtract most of the RINOS from the total. I almost forgot - you should not count on the Republican senators who can be blackmailed to vote against impeachment, and then you need to subtract any senators on "our" side who think if they vote whichever way the wind is blowing in their state, the press and the Democrats will say nice things about them and not try to paint them as being as rotten as Bush. I think we probably passed 67 long ago which is why if I were you, I would not be placing any wagers.