ABC News March 22, 2015

How Ted Cruz Is Practicing to Be a Presidential Candidate

WATCH: Ted Cruz Fires Up Crowd About His 2016 Presidential Run

Spoiler alert! Ted Cruz will formally launch his campaign for president of the United States on Monday, aides to the Republican senator confirmed to ABC News.

And now there are photos to prove it.

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An Associated Press photographer captured a series of shots of a would-be First Family in training. They show Cruz, the Texas Republican, during a walk-through at Virginia's Liberty University, a Christian college in Lynchburg, Virginia, where he will make his White House bid official Monday morning.

In some of the photos, Cruz walks hand-in-hand with his wife, Heidi, and the couple's two daughters -- apparently practicing everything from their wave to a kiss.

Cruz, 44, is the first major candidate to enter what is expected to be a crowded Republican primary field, and his announcement tomorrow will officially kick of the 2016 presidential race.

Andrew Harnik/AP Photo
Caroline Cruz, 6, pretends to react to noise as Sen. Ted Cruz, R-Texas, tells her and her sister, Catherine, 4, right, how loud and crowded it will be for Cruz's Monday morning speech where he is expected to launch his campaign for U.S. president, during a walk-through on stage at Liberty University on Sunday, March 22, 2015 in Lynchburg, Va. Cruz will be the first major candidate in the 2016 race for president.
Andrew Harnik/AP Photo
Sen. Ted Cruz, R-Texas, kisses his wife Heidi, during a walk-through for Cruz's Monday morning speech where he will launch his campaign for president of the United States at Liberty University on Sunday, March 22, 2015, in Lynchburg, Va.
Andrew Harnik/AP Photo
Sen. Ted Cruz, R-Texas, left, meets with staff and coordinators during a walk-through for his Monday morning speech where he will launch his campaign for president of the United States at Liberty University on Sunday, March 22, 2015 in Lynchburg, Va.

ABC's Arlette Saenz contributed reporting.