How much can parties spend on an election?published at 12:23 Greenwich Mean Time 4 November 2019
In the run-up to an election, there are rules around campaign spending to try to keep the race fair.
They can sometimes be vague, but they cover spending by political parties in the year before a general election - and can also include polling day.
Each party must record and report all campaign spending to the Electoral Commission, which oversees elections.
Political parties' spend is also capped at £30,000 for each constituency that it contests in a general election. So if a party stood a candidate in each of the 650 UK constituencies, its maximum spend would total £19.5m.
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