A judge is holding a hearing in former congressman Artur Davis' fight to run as a Democrat again. A Montgomery judge heard testimony today in Davis' lawsuit against the Alabama Democratic Party. Davis wants to run for Montgomery County commissioner as a Democrat. Party officials refused to qualify Davis, citing his past support of Republicans. Davis was elected to Congress four times as a Democrat and ran for governor as a Democrat in 2010. However, he then announced that he had aligned himself with the GOP and spoke at the 2012 Republican National Convention. Davis' lawsuit argues that he is being singled out and the party has welcomed back all other party-switchers, including former congressman Parker Griffith, who was the Democratic candidate for governor last year.