(v.) When the members of a political party vote over whether or not thier leader should step down, usually over thier controversial sidings than laziness or ineffectiveness.
Churchill was almost held to a vote of no confidence until his words proved correct.

I wish Tony b liar would get a vote of no confindence

"New labour will not raise taxes"-Little Tony in 1997

Seven years and 200 stealth taxes later....
by Kung-Fu Jesus May 20, 2004
an expression of approval and support; encouragement
The fact that they let him takeover while his boss was away was a huge vote of confidence.
by rchlsnr March 8, 2016