Cruz campaign raises $20.5 million in last quarter of 2015
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Sen. Ted CruzRafael (Ted) Edward CruzWhatever you think the Alabama special election means, you’re probably wrong This week: Congress gets ball rolling on tax reform Week ahead: Senators work toward deal to fix ObamaCare markets MORE's (R-Texas) presidential campaign on Sunday reported raising over $20 million in the last 3 months of 2015.

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The strong fundraising effort allowed the campaign to start 2016 with $18.7 million on hand.

Of the funds raised in the final stretch of 2015, about 42 percent came from small-dollar donations of less than $200.

The campaign also was not shy about spending its funds as it sought to establish a presence in Iowa, as it spent $15.5 million in those three months.

Cruz has been challenging Republican presidential front-runner Donald TrumpDonald John TrumpIvanka Trump pens op-ed on kindergartners learning tech Bharara, Yates tamp down expectations Mueller will bring criminal charges Overnight Cybersecurity: Equifax security employee left after breach | Lawmakers float bill to reform warrantless surveillance | Intel leaders keeping collusion probe open MORE for first place in the Hawkeye State, which has prompted a feud with the business mogul, as well as other candidates vying for the limelight in early primary states.

--This report was updated at 8:22 p.m.