WAUKESHA, Wis. (AP) — President Donald Trump assured supporters packed shoulder to shoulder at weekend rallies that “we’re rounding the turn” on the coronavirus and mocked challenger Joe Biden for raising alarms about the pandemic, despite surging cases around the country and more positive infections at the White House. Trump’s remarks came Saturday, hours before the White House announced that a top aide to Vice President Mike Pence had tested positive for the virus. Pence has been in close contact with the adviser, the White House said, but still planned to keep traveling and holding rallies around the country. The revelation of another high-ranking administration official testing positive for the virus coupled with the administration’s decision to continue business as usual punctuated a day that marked the starkly different approaches that Trump and Biden are taking to campaigning in the age of the novel coronavirus. Pence’s office confirmed late Saturday that his chief of staff, Marc Short, had tested positive — the public announcement coming just as Trump was wrapping up a day of big rallies in North Carolina, Ohio and Wisconsin, three battleground states that will have enormous impact on deciding the Nov. 3 election.