Rodney G. King Jr. was arrested Tuesday in Moreno Valley on suspicion of driving under the influence. King, 46, was the subject of the infamous videotaped beating by Los Angeles police in March 1991 that resulted in four officers being tried. Their acquittal led to the 1992 Los Angeles riots, in which King was quoted as asking plaintively, “Why can’t we all just get along?” Since then King has had a number of run-ins with police across Southern California on a variety of allegations, including domestic violence. After Tuesday’s incident he was taken to jail and later released on $2,500 bail, records show. King recently appeared on VH1’s “Celebrity Rehab,” trying to tackle his fight with alcoholism. … Republican Tim Pawlenty declined Wednesday to sign a pledge written by a conservative Iowa group that asks presidential candidates to denounce same-sex marriage rights, pornography and forms of Islamic law. Pawlenty said he agrees with the principles behind the Family Leader’s Marriage Vow, but not the way the 14-point pledge is cast. Earlier in the day, the former Minnesota governor released a new radio ad and a web video in which he and his wife Mary discuss their personal faith, anti-abortion views and opposition to gay marriage. Pawlenty is banking heavily on Iowa and its social conservatives to help carry his presidential campaign forward. But signing the pledge could alienate voters who don’t agree with its far-reaching nature. Pawlenty is the second major candidate in as many days to decline the pledge, following former Massachusetts Gov. Mitt Romney’s decision. Former New Mexico Gov. Gary Johnson and former Utah Gov. Jon Huntsman have also ruled it out. Two Republicans, Minnesota Rep. Michele Bachmann and former Pennsylvania Sen. Rick Santorum, have signed the document.