This Connecticut Post report says that Rep. Shays’ former campaign manager was subpoenaed.

A federal grand jury investigating the disappearance of up to $300,000 from U.S. Rep. Christopher Shays’ re-election campaign has subpoenaed the veteran congressman’s former campaign manager, Michael Sohn, of Fairfield, the Connecticut Post has learned.

Sources with knowledge of the probe said the investigation is centering on Sohn’s control of campaign funds used to pay vendors and campaign staff.

The campaign scandal has prompted several state Republicans, none of whom wanted to be identified by name, to believe that Sohn may have used Shays’ re-election funds to gamble.

In fact, the investigation could include at least one withdrawal from an automated teller machine in one of Connecticut’s Indian casinos.