Our CBS News battleground tracker poll finds an overwhelming majority of Americans are optimistic about the economy, with 76 percent of voters rating it as "very" or "somewhat" good. CBS News business analyst Jill Schlesinger joins "CBS This Morning" to discuss why some economists say U.S. growth could "cool" next year. Dan Senor, who served as an adviser on the Romney-Ryan presidential campaign in 2012, joins "CBS This Morning" to discuss what Republican leaders are watching for in the midterm elections. Tuesday's midterm elections feature the most diverse group of candidates in U.S. history, Paula Reid reports on the record number of women, people from different ethnic backgrounds, and LGBTQ candidates running. To put the historic and potential firsts of the midterm election into perspective, CBS News political contributor and former "Face the Nation" moderator Bob Schieffer, who is covering his 25th election, and Pulitzer Prize-winning historian Doris Kearns Goodwin, join "CBS This Morning" to discuss the importance of this Election Day.