Zero is the number of Republicans in parliament who voted in favor of the formal rules. None. Which is, frankly, a victory for President Donald Trump, who is lobbying hard to keep his party in line with a much-watched vote in which as many as half a dozen GP rebels could fundamentally change the history of impeachment day.  Remember this: Republicans control 53 Senate seats. Even if the Democratic-led House impeaches Trump, he will not be removed as 67 senators vote in favor of his conviction. Which in a bit of reverse math means that 20 GHG senators will have to face up with all 47 Democrats (and independents who pack with Democrats) in the Senate in order to have Trump effectively removed.
Until the Senate receives signals from the lower house, all politicians are copycat. Or at least be aware of how the people around them think and act. So if, say, six to 1
Point : Trump has to resist this, he has to ensure that he keeps all Republicans in order (or at least the vast vast majority of them). If in any way it starts to look weak or vulnerable, this impeachment issue can start to go sideways – and quickly.