Sen. Cory Gardner endorses Cruz
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Sen. Cory GardnerCory Scott GardnerBipartisan Senators reintroduce legislation to slap new sanctions on Russia Dems seeking path to Senate majority zero-in on Sun Belt Lawmakers eager for 5G breakthrough MORE (R-Colo.) is endorsing Ted CruzRafael (Ted) Edward CruzPoll shows competitive matchup if O’Rourke ran for Senate again Democrats veer left as Trump cements hold on Republicans O’Rourke heading to Wisconsin amid 2020 speculation MORE for president.

Gardner called Cruz "a fierce defender of the Constitution and a tireless advocate for conservative principles," according to a statement released by the Texas senator's campaign Wednesday. 

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"It’s time for Republicans to rally behind this campaign in order to put forth the best candidate to stop Hillary ClintonHillary Diane Rodham ClintonSanders expected to announce exploratory committee next week Bernie Sanders records announcement video ahead of possible 2020 bid Overnight Defense: Trump declares border emergency | .6B in military construction funds to be used for wall | Trump believes Obama would have started war with North Korea | Pentagon delivers aid for Venezuelan migrants MORE in November," said Gardner, who previously backed Sen. Marco RubioMarco Antonio RubioOn The Money: Trump declares emergency at border | Braces for legal fight | Move divides GOP | Trump signs border deal to avoid shutdown | Winners, losers from spending fight | US, China trade talks to resume next week Trump declares national emergency at border Democrats veer left as Trump cements hold on Republicans MORE (Fla.).

Gardner added he was "thrilled" to support Cruz.

Cruz said he was "honored" to have the support of the Gardner, who is the sixth senator to publicly back Cruz, joining Jim RischJames (Jim) Elroy RischOvernight Defense: Trump to sign funding deal, declare national emergency | Shanahan says allies will be consulted on Afghanistan | Dem demands Khashoggi documents Senate approves Syria, anti-BDS bill Trump administration to suspend nuclear treaty with Russia MORE (R-Idaho), Lindsey GrahamLindsey Olin GrahamPence met with silence after mentioning Trump in Munich speech The Memo: Trump and McCabe go to war Graham seeks new Rosenstein testimony after explosive McCabe interview MORE (R-S.C.), Mike LeeMichael (Mike) Shumway LeeSenate approves border bill that prevents shutdown Push for paid family leave heats up ahead of 2020 New act can help us grapple with portion of exploding national debt MORE (R-Utah), Pat Toomey (R-Pa.) and Ben Sasse (R-Neb.).

"I am honored to have Cory’s support and look forward to working together to continue to coalesce Republicans around this campaign," Cruz said in a statement.

The announcement comes amid speculation surrounding Cruz's plans to make a "major announcement" Wednesday afternoon in Indiana. Reports are indicating Cruz will announce his choice of Carly Fiorina to be his running mate. Fiorina, a former Hewlett-Packard CEO, dropped her own White House bid earlier this year.

Cruz is hoping to deny GOP front-runner Donald TrumpDonald John TrumpGillibrand backs federal classification of third gender: report Former Carter pollster, Bannon ally Patrick Caddell dies at 68 Heather Nauert withdraws her name from consideration for UN Ambassador job MORE delegates in the Indiana primary next week after the businessman moved closer to locking up the GOP nomination by winning five Northeastern primaries Tuesday.