WASHINGTON – President Trump will announce in Indianapolis Wednesday details of his plan to overhaul the federal tax code, the White House announced Monday.

While the tax plan is still being developed, Trump will talk at the Indiana State Fairgrounds about elements that have been finalized, said White House spokeswoman Sarah Huckabee Sanders.

Those elements include the reductions in corporate and individual tax rates Trump wants to see, as well as how he would eliminate "loopholes that have rigged the current tax code in favor of the wealthy and well-connected."

If the plan becomes law, Sanders said the result will be "massive job creation and economic growth."

"We are confident the American people will be very excited about what we are proposing," she said.

The event in the Farm Bureau Building will be Trump’s first visit to the state since his inauguration. Trump is scheduled to speak at 5 p.m. Admission is by invitation only.

Trump's visit comes less than a week after Vice President Pence came back to his home stateto give a speech in Anderson on overhauling the tax code.

And Pence is expected to return in October for a similar event.

“President Trump is going to sign, before the end of this year, a tax cut that will put American workers and the American economy first,” Pence promised Friday.

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Trump's visit was announced as the public debate continued over his urging NFL owners to fire players who don't stand for the national anthem.

Sanders, however, rejected the idea that the issue is distracting from Trump's efforts to pass tax legislation and accomplish other items on his policy agenda.

"I certainly don’t think that talking about the American flag is a distraction for the president of the United States," Sanders told reporters. "I think that it's important for a president to show patriotism, to be a leader on this issue — and he has."

Trump made his initial remarks on the NFL players during a political rally in Alabama Friday. His Indianapolis speech is expected to be less free-wheeling, but Trump — unlike his vice president — doesn't stick to the script.

Indiana is getting lots of attention in the Trump administration’s effort to win bipartisan support for a tax package because of Sen. Joe Donnelly.

The Indiana Democrat crosses party lines more than most members of his party, including on some tax issues.

And if Donnelly does not support the administration’s tax plan, which is still being worked out, Republicans could use that against him in next year’s election.

Donnelly attended Pence's speech Friday and has been invited to Trump's. Because the Senate is scheduled to be in session Wednesday, it's unclear if Donnelly can attend, according to his office.

Besides Donnelly, Sen. Todd Young, R-Ind., and GOP Reps. Susan Brooks of Carmel and Jackie Walorski of Jimtown have been invited to travel to Indiana with the president on Air Force One.

The only Democrat elected statewide in a state Trump won by 19 percentage points last year, Donnelly is a top target in Republicans’ effort to expand their narrow Senate majority.

Donnelly said he wants a bipartisan effort that will give working and middle-class families greater economic security. He's specifically pushing changes to reward companies that keep jobs in the United States and penalize businesses that move them overseas.

Donnelly and the other two Democrats who were invited to the White House this month for a dinner discussion with Trump were the only three Democrats who did not sign onto an August letter sent by Democratic leaders outlining what conditions must be met for the minority to support tax reform.

Most Democrats said they won’t support tax cuts for the wealthiest Americans and won’t vote for an overhaul that adds to the deficit.

As Trump is speaking in Indiana, House Republicans will be huddling at a retreat to discuss tax legislation.

The last major overhaul of the tax code which cut rates while ending loopholes was in 1986.

Contact Maureen Groppe at mgroppe@gannett.com. Follow her on Twitter: @mgroppe.