Unfortunately, there are a massive plethora of statements and actions the president (and some of his team) have done to severely undermine clear and consistent messaging to the public. Media is such that will always be blabbermouths to pop up and say it's no big deal because debating the issues is a thing. But if the government put out a firm, clear, and consistent message, that would overwhelmingly be the message the people got. There was even money to be made: MAGA facemasks, Trump-branded antiseptic hand gel, ffs.
The thing about liberals is that they can be a bunch of bleeding hearts who don't like people dying: that's why they do things like oppose gun ownership, the death penalty and want socialised healthcare. The likes of the NYT, CNN and WaPo were never going to significantly undermine a successful public health campaign just to hate on Trump.
But anway, good public service messaging - that's not Trump, is it? Because once the issue gets beyond being about Trump, Trump's interest nosedives. He didn't really care about covid-19 until the stock market collapsed, which he felt made him look bad. Instead he spent that time mouthing empty, feel-good platitudes and raging at his opponents, because it's easy and made him feel good. Then he squandered covid-19 briefing after covid-19 briefing rambling about nothing in particular, touting quackery and raging against his opponents, declaring them a success not in terms of clear public messaging, but TV ratings. He ran them himself, burbling about this and that for hours with very little cohesion, because he wanted the limelight for himself. Fauci and Birx - who could and would have achieved quality messaging - were criminally underused and even sidelined, likely for contradicting the president at points. (After Fauci spoke to Congress and said things contrary to Trump, he was effectively benched.) When Trump really blew up a briefing, in a sulk he canned the briefing in entirety for a few days rather than let someone competent run it. He won't wear a mask, because then he doesn't look strong and macho, too tough for a mere virus to conquer. All about him, nothing about his people.
It's both enraging and yet also so pitifully sad. That's the US president, the most powerful man on earth and supposed leader of the free world: an insecure man-baby alternately raging and incoherently rambling about stuff like injecting bleach. If I were a Republican it would break my heart. I have no idea how you can bear it.