Maryland Gov. Martin O’Malley has leapt to a 10-point lead over Republican challenger Bob Ehrlich in the latest Rasmussen Reports poll, reflecting a growing gap between the candidates in the last week of their campaigns.

The poll found 52 percent of likely Maryland voters supporting O’Malley, compared with 42 percent supporting Ehrlich. Five percent of voters are undecided and 2 percent support another candidate, according to the results, which  include a 4-point margin of error.