They think that "differences" between people in different parties, and even between people in the same party, are what you'd probably expect.
They would conspire to protect each other, even though they were in different parties".
That common consciousness makes it easier for politicians in different parties to cooperate.
Within six years Benn and Jenkins were in different parties, and Labour was pledged to withdraw from the EU without the offer of a referendum.
Such competition between candidates in different parties is highly unusual and reflects, in part, an influx of new voters into this state who are less rooted with one party or another.
Dominic Grieve and Chris Bryant, in different parties but both experts on parliament and the constitution, came together to list six further ways in which parliament could put the brakes on any attempt to pull the UK out with no deal.
The MP – who was once mocked as "Harriet Harperson" for her leading role on women's rights – said it was amazing that there was now so much unity among women in different parties, especially with such fragmentation within politics.
"That approach — of actually trying to work with people on both sides — is what makes us unique," he wrote in response to questions on his Facebook page, adding: "And without bringing people in different parties and with different views together, meaningful reform will never happen".
And without bringing people in different parties and with different views together, meaningful reform will never happen".
They also found no correlation in cases in which multiple elections involving incumbents in different parties occurred in the same place and year.
