South Bend, Indiana, Mayor Pete Buttigieg mesmerizes members of the media and many voters with the same profile — progressive, white and college-educated. He has almost convinced people you can go from mayor to president (if you've served in the military and if you come across as very smart). While he may do well with that segment of support in mostly white Iowa and New Hampshire, he's going to have real problems in South Carolina and beyond unless he improves his standing with black voters. (Sen. Bernie Sanders has the same problem.)

CNN reported this month on Buttigieg's mostly white audiences in South Carolina: "Buttigieg's two-day swing through South Carolina crystalized that the mayor's rise from presidential bottom feeder to top tier candidate has been largely powered by white voters."

The report continued, "The lack of African American support is a key issue in South Carolina, a state where black voters made up 61 percent of the Democratic primary electorate in 2016. But it is also important in the broader Democratic primary, where black voters are a critical constituency for Democrats in states across the country.”

Buttigieg got a small shot in the arm when he snagged the endorsement of the first black nominee to be Florida's attorney general, Sean Shaw. Shaw could certainly help introduce Buttigieg and help him make connections in the black community in that state.

But to make real progress, Buttigieg will have to do two things.

First, he must go where black voters are — black churches, neighborhoods, civic associations, black-owned businesses and historically black colleges and universities.

Second, he must offer something big and bold that demonstrates his commitment to issues blacks care about. Buttigieg is rather light on policies in general, but for someone with little credibility among blacks, he must answer the most basic question: What are you going to do for me? At the National Action Network in April, he told the black organization and its leader, the Rev. Al Sharpton: "I believe an agenda for black Americans needs to include five things that all of us care about: homeownership, entrepreneurship, education, health and justice."

He delivered a short riff on each item. On criminal justice, he offered: "So a national agenda on criminal-justice reform means not only enhancing policing in a more racially just way, not only challenging discriminatory practices in existing laws but addressing the harm done in the decades-long war on drugs." He continued, "It means reversing and recognizing the harms of mass incarceration, rolling back the private prison industry, that has a financial stake in incarcerating millions of Americans — largely Americans of color." He also pledged to abolish the death penalty.

He now must talk about these things consistently, in black and in white communities. These things must be part of his stump speech, part of an agenda that remains exceptionally broad ("Freedom, Security and Democracy"). How's he going to end "redlining" in housing, close the wealth gap, and address disproportionately high maternal mortality rates in the black community?

When Buttigieg consistently seeks out black audiences and makes racial issues close to African Americans' hearts a part of his stump speech (as Sen. Elizabeth Warren has learned to do), then he's got a shot to make progress with this critical segment of the electorate.

Jennifer Rubin writes reported opinion for The Washington Post.