AP-NORC poll finds skepticism of nationwide election tallies, especially among Republicans - Americans are anxious and frustrated about the presidential campaign, an AP-NORC poll finds - Americans are anxious and frustrated about the presidential campaign, an AP-NORC poll finds - AP-NORC poll finds Democrats and Republicans split on Israel's responsibility for war's escalation - US voters concerned about post-election violence and efforts to overturn the results: AP-NORC poll - Favorable views of Kamala Harris have risen this summer heading into the DNC, AP-NORC poll shows