In Florida, the ad war centers on Medicare. In New Hampshire, a big topic this week is federal student loans. The ads show how the campaigns are tailoring their message to specific voters in key states.
Older Cuban-Americans are unhappy with Paul Ryan's past support for trade with Cuba, but that stand may matter less to younger voters in the community. And recent history shows that Ryan's desire to change Social Security and Medicare may no longer be the third rail of politics in Florida.