You kind of have that in reverse.
1) Trump threw out Obama's Pandemic Plan.
2) Trump disbanded the Pandemic Response Team.
3) Trump was the guy who denied Covid was a problem, even called it a "Hoax".
4) Trump was the guy who pushed back against masking.
5) Trump was the guy who undermined efforts by Blue State governors to contain the spread.
So let's look at Trump's actions regarding China. Initially, he PRAISED Xi's efforts to contain the virus.
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Then when it looked like it wasn't being contained so easily, he banned Chinese nationals from entering the US. He didn't stop other nationals from coming back from China, and not surprisingly, the first US Case was a Chinese-American who was visiting family in Wuhan.
Trump was in charge of the CDC. That kind of makes it his fault.
Trump was in charge for three years. He clearly didn't consider restocking key supplies a priority. Blaming Obama for not having enough masks and ventilators to go around is kind of silly, because Obama hadn't been president for three years.