By Neil Woulfe - Radar Senior News Director

It was extremely scary.

Former First Lady Nancy Reagan -- walking slowly and using a cane -- lost her balance and fell Tuesday night as she arrived at the Ronald Reagan Presidential Library in Simi Valley, California.

Mrs. Reagan was being escorted to her seat by freshman Senator Marco Rubio (R-Florida)  -- a Tea Party favorite -- who was to speak at the event.

• TAGS

• Celebrity Injury
• Marco Rubio
• Nancy Regan
• Ronald Regan