In this April 5, 2016 file photo, Republican presidential candidate Sen. Ted Cruz, R-Texas, waves during a primary night campaign event in Milwaukee. While the focus of the Republican presidential campaign shifts eastward to the New York primary, Cruz is pivoting west, where he is quietly trying to chip away at Donald Trumpís lead in the race for convention delegates. (AP Photo/Paul Sancya, File)
In this April 5, 2016 file photo, Republican presidential candidate Sen. Ted Cruz, R-Texas, waves during a primary night campaign event in Milwaukee. While the focus of the Republican presidential campaign shifts eastward to the New York primary, Cruz is pivoting west, where he is quietly trying to chip away at Donald Trumpís lead in the race for convention delegates. (AP Photo/Paul Sancya, File) Paul Sancya AP
In this April 5, 2016 file photo, Republican presidential candidate Sen. Ted Cruz, R-Texas, waves during a primary night campaign event in Milwaukee. While the focus of the Republican presidential campaign shifts eastward to the New York primary, Cruz is pivoting west, where he is quietly trying to chip away at Donald Trumpís lead in the race for convention delegates. (AP Photo/Paul Sancya, File) Paul Sancya AP