The Brexit Party and the Conservatives have agreed a trumpian pact to no deal. Led by the ERG.
They don't want you to know its a pact because the Conservatives still want One Nation Conservatives types to believe they are still One Nation Conservatives, simply because they say they are. They are not.
The Brexit Party won't stand any candidates in a Conservative held seat. But don't be surprised if there isn't more Non-Pact tactical stepping aside. This of course won't be a Pact. Cos the Brexit Party say its not. And the Conservative Party say its not.
The Liberal Democrats, Plaid and the Greens are in an electoral pact. They say they are in an electoral pact and have published a list.
Meanwhile the Labour Party isn't in a Pact. But there is still talk that in key seats that someone (either the LDs or Labour) should stand aside to try and deseat key Conservatives. This won't happen because the Lib Dems and Labour are not in a pact. And when they say they are not in a pact they aren't.
If after an election we have a hung parliament then either the Conservatives or Labour who are not in a pact and say they will never be in a pact, will try and woo someone to a kingmaker and be in government with them, probably on a supply and demand basis rather than coalition. They'll deny this but we kind of know how this goes...