Transcript for Donald Trump To Deliver Immigration Speech
and Donald Trump announcing he will deliver a major speech on immigration this week. Trying to clear up confusion after he and sent conflicting messages last week. Cecilia Vega has the story. Reporter: Good morning. That speech will be in Arizona and all eyes will be watching to see if Donald Trump clarifies what many now view to be a murky position on one of his signature policy issues. This morning, Donald Trump prepping for a major speech on immigration. The very speech he recently canceled during his campaign shake-up. Now the candidate has a new message and he is sticking to it. We will use immigration law to prevent crimes. Reporter: His surrogates out in force saying he's not flip-flopping on immigration. Chris Christie says his position hasn't changed. This is a guy who has been very consistent on no amnesty for folks who have been coming into the country illegally. Reporter: But trump appears to be softening his stance. This was trump last year. You're going to have a deportation force and you're going to do it humanely. Reporter: Now it seems no more deportation force. He is not talking about a deportation force but he is talking about being fair and humane. Reporter: Over the weekend the republican candidate trying to clean up after another controversial tweet weighing in on the Chicago shooting of an NBA star's cousin. At first, misspelling dwyane wade's name and rather than expressing condolences, making a political plea writing "Just what I have been saying, african-americans will vote trump. Later, trump expressing compassion. It breaks all of our hearts to see it, it's horrible. It's horrible. And it's only getting worse. Reporter: But his new push to win over black voters by reaching out at rallies like this one in Iowa filled mainly with white supporters. This shouldn't happen in our country. This shouldn't happen in America. Reporter: Now facing backlash, opponents questioning his general fitness as a candidate. I mean basically have a psychopath running for president and meets the clinical definition, okay. Reporter: And Donald Trump's team announcing this morning the biggest ad buy so far. $10 million worth of TV ads to run in the battleground states on the economy. Amy, they are saying that they are going on the offensive. All right, Cecilia Vega with the latest. Thank you so much.
This transcript has been automatically generated and may not be 100% accurate.