Obama surprised Biden with the Presidential Medal of Freedom during a White House ceremony.
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Transgender people were no longer allowed to use public toilets after Obama's rule was rebuked by Donald Trump.
US President Joe Biden announced that Americans no longer needed to wear masks against COVID-19, following guidance released by the CDC.
The 'Don't Ask Don't Tell' policy was repealed.
President Barack Obama announced his Clean Power Plan to take action on climate change.
US President Joe Biden made Juneteenth a federal holiday.