WASHINGTON (Reuters) - With the help of former President Bill Clinton, the Democratic Party launched a national drive on Thursday to expand voting opportunities and fight back against what it calls restrictive voting laws. The program will establish permanent procedures and staff in each state to help register and educate voters, and work with local officials to expand access to the polls in the November elections and beyond. Voting laws have been the subject of partisan fights since 2011, when a wave of Republican-sponsored state laws began to impose stricter identification requirements on voters or restrict access, including by cutting...