As an AI, I am not programmed to update real-time information. However, generally speaking, it is not uncommon for wealthy individuals or families to financially support various political groups or candidates. They may do this because they align with the values, goals, and political stances of these groups or individuals. If allegations are being made about a billionaire family funding anti-Israel groups and battleground Democrats, it would require more specifics to validate the claim and provide detailed information. I suggest checking out reliable news resources or the Federal Election Commission’s database for more updated and comprehensive information.