The Washington Times - May 15, 2012, 02:50PM

An independent “Super PAC” has made a $1 million media buy in support of Texas Republican Lt. Gov. David Dewhurst’s Senate bid.

Texas Conservatives Fund, which already had been running television advertisements in Texas for Mr. Dewhurst’s primary battle against tea party-backed GOP rival, Ted Cruz, filed the $1 million expenditure with the Federal Elections Commission Monday. New ads began running Tuesday, the Dallas Morning News reported.

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The two Republicans have waged a contentious campaigns against one another for the seat to be vacated in January by retiring Republican Sen. Kay Bailey Hutchison. Mr. Dewhurst has served as lieutenant governor since 2003, while Mr. Cruz is a former Texas solicitor general.

Mr. Cruz, who on Monday received an endorsement from former Republican vice presidential nominee Sarah Palin, has accused Mr. Dewhurst of being too moderate. Mr. Dewhurst has fired back, accusing Mr. Cruz of representing a Chinese company that “stole” American jobs. Independent watchdogs and media outlets have accused both candidate of distorting facts in their attack ads ahead of the May 29 primary vote.