RICH LOWRY: The Republican High-Water Mark

If Republicans aren't losing their congressional majority this coming fall, they are doing a good job of acting like it.

Dozens of Republicans are leaving the House, and last week Paul Ryan said he is resigning as House speaker at the end of this Congress, and will not even run for his congressional seat again.

If the high-water mark of Republican power came on the day last December that congressional Republicans and President Donald Trump celebrated the passage of the tax bill on the White House lawn, Ryan's announcement is a clear sign that Republican clout is receding.

"We Were Eight Years...