Biden's biggest problem in 2024 isn't age or a shaky memory. It's the war in Israel.

• Biden faces new scrutiny over his age and memory, but that's already baked-in for voters.
• Outrage within the Democratic base over US support for Israel will be a much bigger factor in 2024.
• The issues runs deep and personal for some voters, and it could tip the scales in key states.

Following the release of a special counsel report that raised questions about his age and memory, President Joe Biden moved to forcefully respond to those questions in a brief White House address on Thursday night.