WASHINGTON — President Donald Trump erupted at his top political advisers last week when they presented him with worrisome polling data that showed his support eroding in a series of battleground states as his response to the coronavirus comes under criticism. As the virus takes its deadly toll and much of the nation’s economy remains shuttered, new surveys by the Republican National Committee and Trump’s campaign pointed to a harrowing picture for the president as he faces reelection. While Trump saw some of the best approval ratings of his presidency during the early weeks of the crisis, aides highlighted the growing political cost of the crisis and the unforced errors by Trump in his freewheeling press briefings. Trump reacted with defiance, incredulous that he could be losing to someone he viewed as a weak candidate. “I am not f—-ing losing to Joe Biden,” he repeated in a series of heated conference calls with his top campaign officials, according to five people wit
