Meghan McCain thinks that President Donald Trump's first foreign trip as commander-in-chief is already a success because he's vocally reinforced U.S. support for Israel.

"The United States and Israel can also bring safety and greater prosperity to our people through stronger ties of trade and commerce," Trump said in prepared remarks on Monday.

Trump said the two countries have a strong foundation to "build an even closer trading relationship that benefits both of our countries."

On "Outnumbered" today, McCain said Trump is clearly backing our closest ally in the Middle East, something she did not see from former President Barack Obama.

She pointed out that Obama would not let Israeli President Minister Benjamin Netanyahu speak in front of Congress two years ago, while Trump is scheduled to deliver joint remarks with Netanyahu in Jerusalem on Monday.

"Pro-Israel Americans here in this country have been so deeply offended by President Obama's relationship and seeming anger toward the prime minister of Israel," McCain said.

McCain said that Trump and Obama's stances on Israel are "polar opposites," and it's an encouraging change for those who support Israel.

She added that this successful foreign trip is a prime opportunity for the Trump administration to reset "optically and narratively."

"This really is such an incredible tone shift," McCain said. "Him visiting and speaking with President Minister Netanyahu, that's already a huge leap forward from the past eight years. And we have to give him credit where credit's due on this."

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