Donald Trump and his wife Melania have tested positive for coronavirus.
Mr Trump's election rival Joe Biden said he and his wife Jill "send our thoughts to President Trump and First Lady Melania Trump for a swift recovery".
Mr Pence tweeted that he and and his wife Karen "send our love and prayers to our dear friends President Donald Trump and Melania Trump".
Before testing positive for COVID-19, Mr Trump had said he and his wife were self-isolating after Hope Hicks, one of his top aides, had contracted the virus.
Ms Hicks, who serves as a counsellor to the president, is the closest aide to Mr Trump to test positive for coronavirus so far.
Please use Chrome browser for a more accessible video player Trump on aide testing positive for COVID.
His positive test come as the virus continues to spread at an alarming rate in the US, even as Mr Trump has tried to downplay the threat of the disease. »