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Former Vice President Joe Biden, the Democratic presidential candidate, and his wife, Jill Biden, on Tuesday released their 2019 tax returns.

That's not a huge deal on its own — Biden has released his tax info before — but the timing is certainly not a coincidence. The Bidens made their documents public the same day as the first presidential debate, which will take place just two days after The New York Times published a report after the paper obtained Trump's tax information, which he has not agreed to release.

The Times revealed that Trump paid very little in income taxes over the last several years and it also raised a lot of questions about Trump's business dealings and personal wealth, so Biden's move appears to be an attempt to show a contrast between the two candidates as they get ready to duke it out on stage. Tim O'Donnell