(CNN) President Donald Trump on Friday sent a note to supporters that included a chart showing the Dow Jones Industrial Average dramatically rising roughly at the time he began a news conference declaring a national emergency over coronavirus. The President signed the chart.

"The President would like to share the attached image with you, and passes along the following message: 'From opening of press conference, biggest day in stock market history!' " read the note, a copy of which was obtained by CNN from a source with familiar with it.

The message did not mention the overall coronavirus crisis, the number of people who have died or are sick, nor the fact that he had just declared a national emergency. More than 2,200 people had been diagnosed with coronavirus as of late Friday night and 49 have died.

During the news conference, Trump declared a national emergency that would free up $50 billion in federal resources to combat coronavirus. The announcement was part of a raft of new measures Trump hopes can bring the roiling health crisis under control after a week of market seesaws and major disruptions to everyday life.

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