Question: What was held on November 2, 2010 that included what, incumbent on an American politician and attorney who served as the 61st Governor of Maryland from 2007 to 2015?
Sentence (from "Maryland gubernatorial election, 2010"): Incumbent Governor Martin O'Malley and Lieutenant Governor Anthony G. Brown, both Democrats, were eligible to run for a second term in office and pursued a successful re-election, becoming the first gubernatorial ticket in Maryland history to receive more than one million votes.
Relevant evidence: No