even as the likely GOP presidential nominee# continues to use racist and incendiary language.

DONALD TRUMP, Former President of# the United States (R) and Current## That's what they have done.

They poison ment not just in South America, not just the# three or four countries that we think about.

But all over the world, they're coming# into our country, from Africa, from Asia,## all over the world.

They're pouring into# our country.

Nobody's even looking at them.

AMNA NAWAZ: From circulating baseless# conspiracies about his presidential## rivals to demonizing immigrants, Trump's# rhetoric has reshaped the Wh ite House correspondent Laura Barron-Lopez# has been covering this, and she joins me now.

Good to see you, Laura.

LAURA what kind of language are we talking about?

What# LA URA BARRON-LOPEZ: So, in addition to# what we just heard, Amna, the former## president repeatedly saying that migrants# are poisoning th which historians of Nazi Germany point# out is echoing Adolf Hitler's language,## in addition to that, he's also deployed racist# tactics against his chief rival, Nikki Haley,## the last woman standing against him, questioning# her citizenship, her American citizenship.

On TRUTH Social, he reposted# an account, the Gateway Pundit,## that questioned whether or not she was eligible# to be the president of the United States and## questioned her American bona fides.

And then he# also has repeatedly, Amna, used her birth name,## but mispronounced it, saying Nikki# Nimarata Haley when talking about her.

And so this isn't the first time# that the president has deployed## tactics like that.

You will remember# that he repeatedly questioned form President Barack Obama's citizenship# and repeatedly asked for his birth## certificate and called him Barack# Hussein Obama over and over again.

AMNA NAWAZ: This is all, as you mentioned,## part of his pres LAURA BARRON-LOPEZ: There is a playbook that# has been used by Republican politicians in## the past that appeals to fears of the# other, fears of brown and Black people.

We saw it used by Richard Nixon.

We# have seen it used by Ronald Reagan.## And so this is something that isn't# necessarily new to the Republican Party.

But I spoke to Ian Haney Lopez, who is from# U.C.

Berkeley, and he's a professor of race## and constitutional law.

And he explained how# dog whistle politics animates American voters.

IAN HANEY LOPEZ, U.C.

Berkeley: What's happening# with dog whistle politics is, you have these## politicians who are strategically, intention unconscious vulnerability by saying welfare# queen, illegal alien, terrorist, gangbanger,## terms that they know will trigger unconscious# racist views, but which they can also say, hey,## I didn't say anything racist.

I didn't use a# racial epithet.

I didn't mention skin color.

LAURA BARRON-LOPEZ: Professor Lopez added# that dog whistle politics is effective because## it animates fear and anger among voters.# And when voters become fearful or angry,## they don't really listen to any other arguments.

AMNA NAWAZ: So tell us more about# thos and this language resonating# among those Republican voters?

LAURA BARRON-LOPEZ: I spoke to Denver Riggleman,# a former GOP congr and he said that this -- these types of# racist appeals and nativism from Trump and## from other Republicans is essentially# infecting the Republican voting base.

And then Sarah Longwell, a Republican# pollster, shared some responses that## she's been getting in her focus groups.

And# specifically in this recent focus grou she was speaking to two-time Trump# voters, which shows that Republican## voters are repeating Trump's dog whistles# when they're talking about some of the## other candidates that were running in# the primary, such as Vivek Ramaswamy.

MAN: I'm sorry.

I'm not being prejudiced,# guys, but I don't like his name.

I don't## like where he came from.

After 9/11, I still# harbor a lot of hard feelings about that.

MAN: No offense to any woman out there.

I# just feel like it's a man's job.

They have## got to make tough decisions that can't# have any emotions involved.

They're the## commander in chief.

They have that red# button at their disposal at all times.

LAURA BARRON-LOPEZ: In that last one, we# heard some sexism directed at Nikki Haley.

And so, again, Republican voters repeating some## of the same sexist rhetoric used# by former President Donald Trump.

AMNA NAWAZ: So, Laura, we're talking about the# man who's the likely presum What does all of this mean for the Republican# Party and also for the country moving forward LAURA BARRON-LOPEZ: I want to take# a step back, Amna, because, in 2012,## the Republican National Committee, after that# presidenti decided that they needed to# be a more inclusive party.

They issued an autopsy report that said that# they were losing young voters, th ought that their party didn't want them in the# country.

But then, when Donald Trump won in 2016,## he essentially sent the party down a totally# different path.

And it basically convinced## the Republican Party that he could issue a# playbook of dog whistle politics and win.

I asked Professor Lopez what impact# that could have on the larger country.

IAN HANEY LOPEZ: The tragedy is that Republican# leadership and also important media outlets## like FOX News have convinced a significant# portion of Americans that their best future## depends on rejecting and indeed actively# fighting against a multiracial democracy.

But we're already a multiracial society.

What## we stand to lose then is our democracy# and a society that works for all of us.

LAURA BARRON-LOPEZ: So, even though# Trump's playbook isn't new, Amna,## Professor Ian Haney Lopez# said that that relentles rhetoric has essentially reshaped# the entire Republican voting base.

AMNA NAWAZ: White House# correspondent Laura Barron-Lopez.

Laura, thank you for that reporting.

LAURA BARRON-LOPEZ: Thank you.