Chinese businessmen linked to the China's Communist Party and intelligence services plowed almost $11million into a joint venture with Hunter Biden, a DailyMail.com analysis of newly released bank records shows.

The flood of cash from Chinese oil giant CEFC was squirreled away, largely by Hunter and his family, in just a year.

The bank records, numbering over 200 pages, were released on Tuesday by Senators Chuck Grassley and Ron Johnson, who have been investigating Hunter for almost four years.

The records were sent by the senators to a Delaware prosecutor investigating Hunter's potentially criminal business dealings with foreign nations.

Grassley and Johnson accompanied the ream of records with an excoriating letter slamming the federal prosecutor, David Weiss, for 'failure to respond to our legitimate congressional oversight requests'.

The lawmakers say the documents uncovered in their long investigation lay out 'the Biden family's connections to the Chinese regime and persons connected to its military and intelligence elements.'

They say the evidence amounts to 'potential criminal financial activity with respect to Hunter and James Biden,' – President Joe Biden's brother who goes by 'Jim', who took part in the Chinese joint venture.

The senators are concerned Weiss is dragging his feet and not conducting a thorough investigation of the president's son, or that the probe has been hamstrung by the Department of Justice.

Their data dump comes less than two weeks before the congressional midterm elections.