People also tend to overstate their intention to vote.
"It was not my intention to vote this out with just Democrats," Ms. Boxer said.
Republicans need to declare their intention to vote for the treaty and agree to a vote.
Not a single senator, Democrat or Republican, has announced an intention to vote against Ms. Norton.
What would happen if somebody openly declared his intention to vote no?
At a rally on Saturday afternoon, the crowd cheered when Mrs. Bachmann declared her intention to vote against any compromise.
More careful polling, for instance, revealed that, among Iranians declaring their intention to vote, the incumbent would win handily.
Quinnipiac and Marist have developed likely-voter models based on the respondents' intention to vote and interest in politics.
At Publicis's competitor WPP, several big shareholders have indicated their intention to vote against the WPP board's pay policies.
"It is our intention to vote together with the Palmer United party in the senate," the MEP senator elect said.
"Consequently, it is our intention to vote against the deal unless the merger terms for Xstrata shareholders are materially improved," Mr. Cumming said in a statement.
