At a bipartisan conference in Chicago focused on preserving social security benefits, the former President made his first public appearance. Mr. Biden laid out what he sees as a threat to social security over cuts to staff and local offices that could affect seniors' access.

Presidential approval ratings show Americans' views during each term. See how the latest polls scored Donald Trump and how tariffs affected ratings.

President Donald Trump's net approval on handling immigration has fallen drastically in the space of a few weeks, according to polls. An April Echelon Insights survey of 1,014 likely voters found that 54 percent approve of Trump's actions on immigration,