If the GOP House is afraid to impeach the President, that's fine. But, in that case, they should quit claiming that the President is violating the Constitution because that implies an obligation to impeach in order to protect the Constitution. A Congressman should try to avoid looking like a coward if he/she can, don't you think?
I think I understand the impeachment process. The House votes to impeach. The Senate then holds a trial with only one possible outcome at this time—acquittal. It will be Clinton redux.
In regards to House members who claim the president is doing impeachable things but don’t start impeachment proceedings, I assume the Republican leadership is blocking impeachment at this time no matter what some House members want. Again, this doesn’t mean the House leadership is trying to protect Obama. They may simply believe it’s hopeless to impeach with the Senate (and subsequent trial) in Democrat hands.