Walker will hold an unexpected press conference tonight. Speculations is that he might drop out.
New York Times now saying he will infact drop out.
Gov. Scott Walker of Wisconsin has concluded he no longer has a path to the Republican presidential nomination and plans to drop out of the 2016 campaign, according to three Republicans familiar with his decision, who spoke on condition of anonymity.
Mr. Walker called a news conference in Madison at 6 p.m. Eastern time.