Senator Bond sees the letter as proof of great disarray in the Nixon campaign.
(Also, it can be eaten with a spoon, which is the final proof of great sofa food).
Initially, that chagrined Mr. Trump, himself a self-promotion addict who finds the ex-governor's post-indictment high profile as proof of "great courage".
But there is, I think, something new in the most modern of these open-air movements - Kibbo Kift Kindred, whose queer-sounding name comes from an old Cheshire expression meaning "strong" or "proof" of great strength.
Mr Berlusconi said his party had given "proof of great responsibility and had supported [Mr Monti's] technocrat government for a year, seeking to correct policies that are not convincing, whilst insisting that austerity in an economy that does not grow is harmful.
When any one shall succeed in finding proofs of greater precision, gratitude will be due to him for the discovery, but at present we must be content with a probable solution.
But they played with grit and passion, and suddenly Van Gundy looks like a sage again, holding up this game as proof of something greater than merely a victory over the Lakers.
The ECB's critics make much of the fact that, by law, America's Fed is supposed to worry about jobs as well as inflation, and they point to its recent interest-rate cuts as proof of its greater tolerance of inflation.
