FOUR CANDIDATES FOR LEGISLATURE HAVE DWI CONVICTIONS: Four Triangle candidates for the state legislature have been convicted of driving while impaired since 2000. Three say they had a lapse in judgment. One, Ray Ubinger, a Durham Libertarian, said his arrest was unjust. Ubinger has also faced charges of carrying a concealed gun and resisting a police officer. Two of the four candidates are Libertarian, a party that has not had a candidate elected to the legislature. They are running in districts with a history of electing Democrats. The two Republicans are running in heavily Democratic districts where incumbents are seeking re-election. Ubinger, who is running in Senate District 22, pleaded not guilty in 2001 to the weapon and resisting charges. He argued at a jury trial that the judge and other court officials were not legitimately elected, because the state does not count all write-in votes, and that the roadblock where he was stopped was unconstitutional. He was found guilty of both charges. If elected, Ubinger said, he would work to end random checkpoints.