President Trump unloaded on former House Speaker Paul Ryan for the second time in three days Saturday, mocking him as a “Lame Duck” and chiding his leadership style as “ineffective” and “stupid.” In a series of tweets, Trump praised House Minority Leader Keven McCarthy, R-Calif., calling him smarter and tougher than Ryan, who retired in January. He also characterized Ryan’s fundraising numbers in his final year in office as “abysmal” and said people like him “almost killed the Republican Party.” […] His comments come days after excerpts from an upcoming book the former House Speaker as saying that Trump “didn’t...