A super-PAC supporting Republican presidential candidate Sen. Ted CruzRafael (Ted) Edward CruzOvernight Tech: Facebook faces crisis over Cambridge Analytica data | Lawmakers demand answers | What to watch for next | Day one of AT&T's merger trial | Self-driving Uber car kills pedestrian The case for a new branch of the military: United States Space Force The problem with hindsight MORE (Texas) is going up with $2.5 million in new television ads in early voting states.

Keep the Promise has a 30-second TV ad with Cruz that will air, starting Tuesday, for two weeks in Iowa through the Feb. 1 caucuses, according to the group. The ad launches in South Carolina next week, Jan. 25, and will run for nearly four weeks.

The ad includes video clips of Cruz from his speeches and remarks from his supporters arguing that the Texas lawmaker has stood up to Washington.

"When I tell you I'm going to do something, I'm going to do exactly what I said I would do!" a feisty Cruz says in one clip.

The latest ad buy is more than double what Keep the Promise announced earlier this month for television advertising in the Hawkeye State, where Cruz is neck-and-neck in polls with Donald TrumpDonald John TrumpLieu: There will be 'widespread civil unrest' if Trump fires Mueller Attorneys for Trump, Mueller hold face-to-face meeting to discuss potential interview topics: report Trump tariffs not helpful for nuclear talks, South Korea says MORE.

The group has put up a smaller amount, $200,000, on a digital ad targeting rival Sen. Marco RubioMarco Antonio RubioRubio: McCabe 'should've been allowed to finish through the weekend' For Tillerson, bucking Trump became a job-killer At least six dead after pedestrian bridge collapses on cars in Florida MORE (Fla.) on immigration in Iowa, New Hampshire, Nevada and South Carolina.