President Trump complained Sunday that Republican lawmakers are not doing enough to support him amid the ongoing Russia investigation.

In pair of tweets, Trump took aim at the investigation, calling it an "excuse for a lost election" and said that it is "very sad" that Republicans do not "protect" him enough.

"It's very sad that Republicans, even some that were carried over the line on my back, do very little to protect their President," Trump tweeted mid-afternoon on Sunday.

"As the phony Russian Witch Hunt continues, two groups are laughing at this excuse for a lost election taking hold, Democrats and Russians!" he said.

Trump's complaints come as heads clash between the White House and Capitol Hill, particularly on the Russia investigation and the involvement of special counsel Robert Mueller, who the White House has been critical of over the past week. Trump himself also warned Mueller against looking into his financial records as part of the investigation.

The president also reiterated his desire to repeal and replace the Affordable Care Act last week after issues continued to plague GOP healthcare reform efforts, including the lack of support for either the Better Care Reconciliation Act or a clean repeal of the ACA.

His call to do so came in a meeting with Republican senators at the White House on Wednesday.

Later on Sunday, Trump slammed the Washington Post and the New York Times for their negative coverage of his administration even when good things are happening.

"It's hard to read the Failing New York Times or the Amazon Washington Post because every story/opinion, even if should be positive, is bad!" Trump tweeted.