Not according to a majority of the house, a majority of the senate, and a majority of the nation (based on polling). Your buddies are in control. if they feel there is enough to impeach they should just go ahead and do it. They already have one republican on board. Lay out the facts as they see them. Shift the public opinion on the matter. Heck, they could even say afterwards they did their job and the republicans in the senate refused to do theirs (although if the senate doesn't indict you could argue the House didn't do their job either).
The bottom line is the evidence is shaky at best after two years of investigation.