 Perhaps thinking strategically, they are more worried about his ability to campaign in addition to his age. Deputy Director of Elections and Surveys for CBS, Jennifer DiPinto. The CBS News YouGov poll is based on a national sample of 1,130 registered voters. The margin of error for the sample of the registered voters surveyed is plus or minus 4.2 percentage points. The Supreme Court's ruling on former President Trump's claims of presidential immunity from prosecution due tomorrow...