The heads of government agencies including the FBI, Department of Justice and National Security Agency warned in a joint security statement Tuesday that "foreign actors" would seek to interfere in the 2020 election.

Russia, China, Iran, and other foreign malicious actors all will seek to interfere in the voting process or influence voter perceptions".

Why it matters: The announcement comes as House Democrats probe whether President Trump pressed Ukraine to interfere in next year"s election by asking the nation’s leader to investigate his potential 2020 opponent former Vice President Joe Biden and his son.

Former special counsel Robert Mueller said during testimony on his investigation into Russian interference in the 2016 election that "many more countries are developing capabilities to replicate what the Russians have done ... They are doing it as we sit here and they expect to do it during the next campaign."

There"s now a federal investigation into the Trump-Russia probe.