Washington (CNN) President Donald Trump kicked off his hangar rally Monday in Montoursville, Pennsylvania, touting the economic growth under his administration and taking aim at Democratic presidential front-runner Joe Biden.

His speech touched on familiar topics, such as immigration, and he slammed Democrats and touted his own record. Trump predicted that it should be "very easy" to debate the eventual 2020 Democratic nominee because of his economic successes.

"Those debates should be very easy when we meet whoever we're going to meet," he said.

The rally in central Pennsylvania, a key battleground state, highlights Trump's commitment to campaign in areas that have been flashing warning signs for his reelection campaign. Trump foreshadowed that he will be back here quite a bit in the coming year.

"I'll be seeing a lot of you all in the next year ... Gotta win this state," he said.

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