President Trump said Tuesday that Democratic Sen. Bill Nelson of Florida has not been proactive when it comes to solving the algae problem in his state's largest lake, Lake Okeechobee.

“.@FLGovScott has been relentless in securing the funding to fix the algae problem from Lake Okeechobee - we will solve this! Congress must follow through on the Government’s plan on the Everglades Reservoir,” Trump posted to Twitter. “Bill Nelson has been no help!”

Trump praised Republican Gov. Rick Scott for being “relentless” in his efforts to secure funding to resolve the harmful algae bloom issue, which kills fish and poisons the water.

Scott is challenging Nelson in his re-election for Senate, and as of earlier this week, a RealClearPolitics poll puts Nelson with 47.6 percent of the vote and Scott with 45.2.

Trump has been on the campaign trail recently attempting to energize the base to vote in the 2018 midterms in order for Republicans to maintain their majority in both chambers of Congress.

Although these algae blooms occur naturally, and experts believe the particularly bad case was fueled by Hurricane Irma sending nutrients from the ocean floor to the coastline, Nelson and Scott have blamed each other.

Nelson has insisted that the problem is a result of Republican mismanagement of Florida’s government, but Scott has said it is a product of federal inaction.