Today, President Trump and Congress will officially make a tax overhaul their big priority. The president will begin laying out at least some details in a speech in Indiana.

Here’s what would affect corporate America, according to The New York Times and The Wall Street Journal:

• The corporate tax rate would drop to 20 percent, from 35 percent.

• A 25 percent tax on “pass-through” businesses.

• A one-time low tax for companies repatriating offshore profits, followed by a lower tax on overseas profits going forward.

But some analysts said they did not expect more just yet. From The Journal:

“They know the more details they give, the more likely [they] open up Pandora’s box and the attacks will begin,” said Stephen Myrow, a former Treasury official and managing partner of Beacon Policy Advisers.

And Politico’s Nancy Cook and Ben White report on worries among lawmakers and administration officials about what the president will say:

“He’s the one guy left in Washington who still wants a 15 percent corporate rate,” said one person close to the president and the tax reform discussions. “They could put 20 percent down on paper and he could go out and say 15 percent anyway. He goes to these tax meetings and people just hammer him but he still wants 15 percent.”

Republicans will need to tread carefully. From a new poll by The Washington Post and ABC News:

• More than seven in 10 adults felt the current system favors the wealthy.

• About 65 percent of Americans said large corporations pay too little in taxes.