Most Democrats want Biden to step aside, making a plan to crown him the nominee early even more controversial

• Democrats are moving ahead with a plan to crown President Joe Biden as their nominee earlier than expected.
• The Democratic National Committee is set to hold a virtual roll call vote before the convention.
• Their effort would help Biden head off any formal challenge to step aside.

President Joe Biden urged skeptical Democrats to challenge him on the convention floor. But under a controversial plan, he would already be the Democratic Party's presidential nominee when delegates gather in Chicago.