The last 9 words in that sentence are significant. Republicans have changed the terms of the national debate.
Thanks to principled Republican House members, unimpeded government growth and the insane national debt are becoming important issues to Americans. They never used to be, except to conservatives. That is a crucial change in American politics. Obama is toast and the left is sinking because they got what the wished for: a liberal (communist) president, liberal congress (2009-2011) and a brain-dead electorate. Americans got to see what liberalism looks like when implemented - and it isn't so attractive anymore. God works in mysterious ways.
“Thanks to principled Republican House members, unimpeded government growth and the insane national debt are becoming important issues to Americans.”
I think you mean principled Tea Party House members.