Jan. 17: CDC & DHS announced U.S. citizens returning from travel-restricted countries being rerouted to specific airports, where they would be screened/isolated CDC on that day also stated that, “based on current info, the risk from Covid-19 to the U.S. public: deemed to be low.”

Japan, South Korea, & Thailand reported their 1st cases of novel coronavirus on Jan. 20. On Jan. 21, the 1st case of coronavirus in the USA was reported, of a man who had traveled from Wuhan, China. That is the case President Trump referred to the next day (1/22/20).

The Biden ad skips from Jan. 22 to Feb. 27, ignoring CRUCIAL developments during that time period.
Jan. 24: The CDC confirmed the 2nd U.S. case of coronavirus, adding AGAIN that “based on what we know right now, the immediate risk to America remains low.

On Jan. 28, the WHO praised China for its “speed & openness” in dealing with the virus. The same day, President Trump expanded U.S. airport screenings to identify travelers showing symptoms & instituted mandatory quarantines.

On Jan. 30, the WHO declared a global health emergency of international concern. On Jan. 30, CDC confirmed publicly for the 1st time the person-to-person spread of Wuhan virus & applauded WHO’s decision. That day, #45 created the White House Coronavirus Task Force.

The next day, Jan. 31,#45 declared coronavirus a U.S. public health emergency-issued the ban on travel between the USA- China. On that same day, the Senate voted on the production of additional documents in the impeachment trial of President Trump.

Campaigning in Iowa that day (Jan. 31, 2020), Biden criticized President Trump’s China travel ban, saying during an Iowa campaign event, “This is no time for Donald Trump’s record of hysteria and xenophobia.”

Feb. 4: The White House directed the U.S. FDA to step up coronavirus diagnostic testing procedures.
Feb. 5: CDC issued a statement saying, “We continue to believe the immediate risk of COVID exposure to the public is LOW, CDC is undertaking measures to help keep that risk low.”

Feb.18: The CDC reaffirmed that the “risk to Americans from coronavirus is low.”
Feb. 26: The administration raised travel warnings to their highest level for Japan and South Korea.

It was not until Feb. 26 that the 1st case of suspected local transmission in the USA was announced by the CDC. #45 that day named VP Pence to lead the Coronavirus Task Force. The next day, Feb. 27, Pence named Dr. Deborah Birx to serve as the WH Coronavirus Response Coordinator.

On Feb. 29, the first death from the coronavirus was recorded in the United States. On that date, President Trump halted travel with Iran.
On March 11, the WHO declared coronavirus a worldwide pandemic.

The next day, on March 12, President Trump imposed travel restrictions on Europe & elsewhere. Biden criticized that decision also.
Then, on March 13, President Trump declared a national emergency.