He will likely earn 18 delegates in lightly contested contest
                                
                                
                                    (Newser) -
                                    Mitt Romney easily won the lightly contested Maine caucuses tonight. Though the caucuses amount to a nonbinding preference poll,  Romney will likely gain all of the state's 18 delegates to the national convention, the AP reports.  With about 70% of precincts reporting in, Romney had 52%, McCain 21%,...