The phrase "political threshold" is correct and usable in written English.
It is typically used in the context of a political campaign or election to refer to the minimum percentage of votes required to win a seat or some other measure of success. For example, "The party failed to reach the political threshold of 40% of the vote needed to take control of the state legislature."
He said the legal and political threshold for a possible "Italexit" was very high, and would require votes in parliament and a possible referendum.
Nigeria is at a critical financial and political threshold and the entire nation could possibly tip backwards permanently, per A/S Carson.
And even though it is a limited move, the enforcement of the no-flight zone also crosses a new political threshold.
But a senior Bush administration official said that while the request sounded "like a simple task, it means reaching a new political threshold to take on a task inside Macedonia".
Looking farther ahead, there are fears that UAS and other robotised killing machines will so lower the political threshold for fighting that an essential element of restraint will be removed.
He has also shown he is prepared to cross the political threshold, having run as the Green Party's vice president under the leadership of Marina Silva in the 2010 Brazilian general election, in which they garnered a fifth of the votes.
These political thresholds are based on work by my colleague Nate Silver, who suggests that 150,000 jobs a month is the rough dividing line between the pace that helps and hurts an incumbent.
"That was the threshold political question.
"A major sophisticated European court has broken through a political and psychological threshold.
James Thornton, chief executive of environmental law organization ClientEarth, told the Guardian that: "A major sophisticated European court has broken through a political and psychological threshold.
Sometimes, Ms. Goodling would ask: "Why are you a Republican?" In Ms. Goodling's notes from the interviews, she would give a shorthand assessment of how well they fared on threshold political issues, as in the notation for one candidate who she wrote was aptly conservative on "god, guns + gays".
