(CNN) President Donald Trump is banking on the strength of his base in 2020 and isn't concerned about swing voter outreach ahead of what is expected to be a highly competitive campaign.

"I think my base is so strong, I'm not sure that I have to do that," Trump told TIME during a 57-minute Oval Office interview earlier this week that was published Thursday when "asked whether he should reach out to swing voters."

The President, who won by narrow margins in several key swing states in 2016, is going to need swing voters to pull off another victory in 2020. More than half the country disapproves of his job as President, and he trails every presidential candidate in the top tier of the Democratic field in head-to-head matchups, according to recent polls.

The Trump campaign declined to comment on his remarks to TIME. However, the campaign has long been hard at work identifying swing voters and building a massive data operation to target and turn them out on Election Day.

Brad Parscale, Trump's 2020 campaign manager, told TIME the mantra of the 2020 campaign is "turnout, turnout, turnout."

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