Name That Christianist!

Here's the quote:

The President had exerted his most fervent efforts to persuade [the ambassador], newly restored to favor by the turn of events, to accept the phrase, 'religious freedom'. He was invited to luncheon with us in the President's room on purpose.

and yet more...

Later on the President had a long talk with him alone about his soul and the dangers of hell-fire.

Wow. Just...wow. An American President...proselytizing to a foreign minister.

Can you Name That Christianist?

Answer: It's Franklin Delano Roosevelt, spreading that good old Christian fervor to Soviet Ambassador Maxim Litvinov, as described in Winston Churchill's The Second World War, Vol. III, Chapter 36. Churchill went on to say that, had Roosevelt lost the election in 1944, this incident was enough to recomend Roosevelt to the King to be the next Archbishop of Canterbury.