>This attack-at-all-costs every incumbent or anyone who ever disagreed with anyone here is leading to the destruction of the GOP, and any chance to stop Obamacare, another 2-3 SC Justices appointed, Cap-and-tax, etc.<
No, the GOP has done that all by themselves. Any Senator has the power to tie the senate up in knots and create havoc to stop this degradation of our country. But they are more concerned with decorum and “civility” than preserving our Constitution.
Only if they are from the party in power, or the minority has at least 41 Senators. Otherwise you're powerless.
Additionally, you don't need all Senators to be strong conservatives; you need enough strong conservatives to set the general agenda, and enough total Republicans to give them a majority. The power in Congress is not just the numbers you have, it is the chairmanships of the various committees. Sure, you may not have enough votes to get all the legislation you want, but you can definitely stop - at the committee level - any legislation you don't want.