Different rules for different parties

A two-fer - first, from ABC News:

Federal watchdog recommends Trump senior adviser Kellyanne Conway be 'removed from service'
A federal watchdog agency recommended on Thursday that White House senior adviser Kellyanne Conway be “removed from service” citing repeated violations on a law that bans federal employees from political activity.

The Office of Special Counsel, an independent federal agency that investigates wrongdoing by government employees, found that Conway “violated the Hatch Act on numerous occasions by disparaging Democratic presidential candidates while speaking in her official capacity during television interviews and on social media.” 

And, from our most transparent and scandal-free administration ever - from PJ Media:

FLASHBACK: Two Obama-Era Officials Violated Hatch Act But Weren't Removed from Office
The U.S. Office of the Special Counsel has recommended the removal of White House Counselor Kellyanne Conway over violations of the Hatch Act.

The OSC wrote that her “violations, if left unpunished, would send a message to all federal employees that they need not abide by the Hatch Act’s restrictions. Her actions thus erode the principal foundation of our democratic system — the rule of law.”

This isn't the first time a White House or cabinet official violated the Hatch Act. It happened several times in the Obama administration but the OSC didn't recommend the removal of the official.

In 2012, the OSC said Health and Human Services Secretary Kathleen Sebelius made “extemporaneous partisan remarks” in her official capacity in violation of the Hatch Act. Sebelius acknowledged her remarks were a "mistake" and she was not removed from her position due to the violation.

Former Housing and Urban Development Secretary Julian Castro, who is now a 2020 Democratic presidential candidate, violated the Hatch Act in 2016 by praising then-Democratic presidential candidate Hillary Clinton in an interview at his HUD office, but President Obama did not remove him from his position.

But Sebelius and Castro were good Party Apparatchiks so they are allowed some leeway.