Federal officials repeatedly warned that US hospitals lacked enough ventilators
It's always the government was warned and ignored the threat. Both parties are to blame. That's what happened before 9/11:
In at least 10 government reports from 2003 to 2015, federal officials predicted the United States would experience a critical lack of ventilators and other lifesaving medical supplies if it faced a viral outbreak like the one currently sweeping the country. The drumbeat of warnings undermines President Donald Trump's claim last week that "nobody in their wildest dreams" could have imagined the demand for ventilators that now exists. The demand is pushing hospitals to the brink in New York City and threatening to do so in parts of Washington state, California, Louisiana and beyond.
In addition, a 2017 study funded by the National Institutes of Health and the Centers for Disease Control and Prevention found that "substantial concern exists that intensive care units (ICUs) might have insufficient resources to treat all persons requiring ventilator support" and that even the supplies held in the so-called Strategic National Stockpile "might not suffice to meet demand during a severe public health emergency."