Scott Walker wows the crowd with this quip

In this case, he's referring to Washington, D.C.

Scott Walker hits up Washington. (WMUR, 5/19/2015)

Slamming Washington is always a popular line -- until you have to come to town to shore up establishment support and scoop up big donors.

That's why Walker will kick off Tuesday with a slate of congressional meetings with roughly 70 to 80 lawmakers, according to people familiar with the plans. Wisconsin Rep. Paul Ryan, a longtime pal, is expected to introduce him at the event.

Other cities surrounded by reality:

• Iowa City, Iowa (10 square miles)
• Ithaca, New York (10 square miles)
• Ann Arbor, Michigan (25 square miles -- 24.6, to be exact)
• Boulder, Colorado (25 square  miles)
• San Francisco (49 square miles)
• Madison, Wisconsin (77 square miles, not including water)
• Austin, Texas (300 square miles)