The claim
"Prior to 1983, social security was not taxable. Joe Biden voted successfully in favor of taxing 50% of social security. In 1993, Joe Biden was the deciding vote in raising taxes on social security from 50% to 85%. Now he wants to tax our 401k's and IRA's."
Sources and attribution
Original review: FactCheck.org. Structured data compiled by Data Commons under CC BY 4.0. Publisher article content is subject to its own terms.
Updated