"We believe it is important to provide you, the donors who generously fund and raise money, with a list of relevant questions considering the current circumstances faced by his campaign," the memo reads.
In the aftermath of violent riots and looting in France, the country's former intelligence chief, Pierre Brochand, has blamed the disorder on the mass immigration policies of the last 50 years.
Just 39% of the middle-class Americans surveyed in a Harris Poll commissioned by Bloomberg in late March and June believe their financial situation will improve within the next year.
"Only American citizens should be voting in American elections. That's why I introduced the District of Columbia Voter Identification Act to safeguard election integrity," Greene says.
