President Donald Trump has reportedly been using his personal cellphone more to communicate with outside advisers and Republican lawmakers.
CNN was the first to report on the private calls, noting a number of sources both inside and outside the White House see it as a sign that Trump is sidelining his chief of staff John Kelly.
If Trump makes a call using the White House switchboard, then Kelly receives a printed notice of who he was talking to. But that's not the case with a personal cell phone.
One source told CNN, "Kelly used to be more clearly the gatekeeper than he is now from a Hill standpoint."
Prior to Kelly starting his chief of staff job last year, Trump reportedly asked multiple world leaders to call him on his cellphone instead of on a more secure line.
In any of these reported instances, it's unknown if Trump used his government-issued cellphone or the "old, unsecured Android" he had before taking office. But experts say both pose a security risk as hackers could gain access to private information or eavesdrop on calls.