Please answer a question about the following article about The Sun (United Kingdom):

On election day (6 May 2010), The Sun urged its readers to vote for David Cameron's "modern and positive" Conservatives in order to save Britain from "disaster" which the paper thought the country would face if the Labour government was re-elected. The election ended in the first hung parliament after an election for 36 years, with the Tories gaining the most seats and votes but being 20 seats short of an overall majority. They finally came to power on 11 May when Gordon Brown stepped down as prime minister, paving the way for David Cameron to become prime minister by forming a coalition with the Liberal Democrats.

Who did David Cameron align with in order to become Prime Minister?
Liberal Democrats