There hadn't been any doubt about it for several weeks, but with his win Tuesday in the Texas primary Mitt Romney has "clinched the Republican presidential nomination," according to The Associated Press.
This is a classic chain of events that never seems to go out of style in an election year.
First one of the presidential campaigns put out videos that it says are informational but critics say are attack ads. This time, it's President Obama's team and the target is Republican rival Mitt Romney. The point of the spots, such as this one, is to make the case that when Romney ran Bain Capital, some of the companies the investment firm took over ended up shedding jobs rather than creating them.