In friendlier times, Maryland Gov. Martin O'Malley, left, and Texas Gov. Rick Perry participate in a 2011 panel discussion in Washington, D.C. At the time, O'Malley was chairman of the Democratic Governors Association; Perry was chairman of the Republican Governors Association. Now they're in a spat over Perry's efforts to lure Maryland businesses to Texas.
The Republican governor has been turning up in other states, touting the wonders of Texas and promising business owners they'll find lower taxes and more manageable regulation there.
"It does help get the word out to business leaders that may be frustrated," says David Carney, a longtime consultant to Perry. "Going in person can get literally hundreds of thousands of dollars of free media coverage."