In Today's Times:
- Rallying under a story of voter fraud they can't prove, True the Vote and similar groups are fighting what they believe is an effort to subvert elections by scrutinizing registration rolls and the voters who show up at the polls, Stephanie Saul reports.
- After Chicago officials and union leaders reached a tentative agreement on Friday, the Chicago Teachers Union extended its strike on Sunday, forcing one of the country's largest school systems to go a second week without classes, Monica Davey and Steven Yaccino report.
- As the death toll continues to rise in Syria, addressing the civil war is becoming a top priority for the Obama administration. But the violent protests last week have intensified the question of whether intervention is the solution, Robert F. Worth and Helene Cooper report.
- Amid discord among his campaign staff members, Mitt Romney will take a new approach this week, playing up his five-point economic plan in ads, speeches and events in an effort to answer questions about what he would do if elected president, Jim Rutenberg and Jeff Zeleny report.
Washington Happenings:
- President Obama will attend campaign events in Cincinnati and Columbus, Ohio, on Monday.
- Vice President Joseph R. Biden Jr. will attend a campaign event in Burlington, Iowa.
