Ahead of Mike Pence's visit to Virginia, the Democratic Party of Virginia Communications Director Emily Bolton released the following statement: 

"After insulting our President and praising Vladimir Putin this week, Mike Pence released his tax returns, drawing renewed attention to Trump's refusal to release his own returns, which breaks a precedent set by every major party nominee since 1976. A majority of Americans, and a majority of Republicans believe that Trump should release his tax returns. Trump’s returns could reveal even deeper ties to Russia. They could reveal the truth about his personal wealth, and answer questions about his dubious charitable giving. But until we see Trump’s returns, we simply can’t know, and are left to wonder, what is Trump hiding?"