Trump used note cards. So did W. Bush and the presidents before him. Should we worry that Biden uses them, too?

• Donors have expressed concerns with President Joe Biden's reliance on note cards, per Axios.
• They viewed the cheat sheets as another sign of Biden's old age, per the report.
• Presidents have long relied on prepared notes to address their constituents, historian says.

At a recent closed-door fundraiser, President Joe Biden had to rely on note cards prepped by his staff to provide donors with detailed answers on his policy.

This, according to Axios, had some donors concerned: Is Biden's age showing again?