Trump challenges Sessions to investigate Obama, Democrats on Russia

The tweet is the latest in a series where Trump faults former President Barack Obama for not doing enough to stop Russian meddling, but the first time Trump has suggested that Sessions -- the man he picked to lead the Justice Department -- wasn't doing enough.

"Question: If all of the Russian meddling took place during the Obama Administration, right up to January 20th, why aren't they the subject of the investigation?" Trump tweeted. "Why didn't Obama do something about the meddling? Why aren't Dem crimes under investigation? Ask Jeff Session!"

Trump misspelled his longtime supporter's name: It's Sessions, not Session.

The Justice Department is tasked with investigating crimes committed in the United States, making Trump's tweet a suggestion that the former Obama administration committed a crime by not stopping Russia.

The Justice Department declined to comment on Trump's tweet.

Trump and Sessions were in the Oval Office together on Tuesday during an event honoring law enforcement officials. The two, according to a source, did not interact much while taking photos.

Trump and his top aides, in an attempt to protect the President and the White House from a steady stream of stories about special counsel Robert Mueller's investigation into election meddling, has started to fault the Obama administration for not doing enough when the former president was in control.

"He has been tougher on Russia in the first year than Obama was in eight years combined," White House press secretary Sarah Sanders said during Tuesday's White House briefing.

While Trump and even some Democrats have criticized the Obama administration for not speaking up enough on Russia's actions before the election, Obama did take some steps to reprimand the country.

Obama confronted Russian President Vladimir Putin on the sidelines of the G20 meeting in China in 2016, something Trump has yet to forcefully do in meetings with the Russian leader. Trump and Putin discussed election interference in Hamburg, Germany, in July 2017. Trump later said he thought the Russian leader was earnest when he denied any election meddling.

During his last two years in office, Obama also imposed sanctions on Russian individuals and entities for election meddling, kicked out 35 Russian diplomats and closed two Kremlin compounds in the United States.

Trump has yet to impose sanctions overwhelmingly passed by Congress last year and missed deadlines to identify which Russian individuals and entities would be on the sanctions list. Last month, the Trump administration decided against implementing the sanctions against Russia and instead published a list of already prominent Russian oligarchs.

Sanders suggested on Tuesday that more action to confront Russia was soon to be released.