In 1995 Biden suggested cuts in social security to defend the GOP balanced budget amendment. Now he supports increases in social security benefits.
In 2003, he sponsored a senate resolution opposing cuts in the cost-of-living increases for Social Security benefits. In the AARP Iowa forum on July 15, 2019, he has given statements to increase social security benefits (Refer video of AARP at 1:48:20). Moreover, Joe Biden, on his official website, unveiled plans to shore up the program’s solvency while increasing benefits in the social security area.
Therefore it is clear that in this election, Biden has called for action to make the program solvent and prevent cuts in social security benefits.