Last year, Saudi Arabia, the United Arab Emirates, Bahrain and Egypt accused Qatar of "supporting terrorism" and "undermining regional security" by seeking closer ties with Iran, an accusation Qatar strongly denied and called it "unjustified" and "baseless".
The leaders are set to carry a gathering and dealing lunch that the White Home mentioned would concentrate on strengthening ties, together with safety and financial points.
Trump hasn't repeated that charge recently and Qatar has since taken steps to address USA concerns.
Trump greeted Qatar's Sheikh Tamim bin Hamad Al Thani Tuesday.
The announcement was made ahead of a meeting between Qatari Emir Tamim bin Hamad Al Thani and US President Donald Trump on Tuesday.
President Donald Trump is welcoming the ruling emir of Qatar to the White House.
Mattis also stressed that Washington was seeking to cooperate with Qatar in order to achieve peace in the Middle East on several fronts, such as combating terrorism, defeating the Islamic State of Iraq and the Levant (ISIL, also known as ISIS), and undermining Iran's activities in the region. Qatar denies the allegations and says the moves attempt to undermine its sovereignty.
Free tax filing, preparation services offered as deadline approaches
Taxpayers must make full payment of the properly estimated tax balance due when requesting an extension of time to file. So much information that the IRS even tells you exactly how long it will (or should) take you to complete their forms.
Saudi Arabia and others have continued squeezing the country diplomatically and financially with a partial blockade, arguing those steps were wholly insufficient to address their long list of demands on Qatar, which included shutting down Qatari broadcaster Al-Jazeera. "We do not and we will not tolerate. people who fund terrorism".
Despite the past tensions, there were signs that Trump was warming to the Qataris. Qatar denies that charge but has taken steps to address USA concerns.
His visit comes after Saudi crown prince Mohammed bin Salman conducted a successful three-week USA visit.As a warmup to the visit, the State Department approved the sale of 5,000 Advance Precision Kill Weapon Systems (APKWS) to Qatar, including 5,000 high explosive warheads.
"He's a friend of mine" Trump said effusively.
Sheikh Tamim said his nation hosts more than 10,000 US servicemen and women and work with Washington in countering terrorism.
"We have a gentleman on my right who buys a lot of equipment from us, a lot of purchases in the United States and a lot of military airplanes, missiles, lots of different things", Trump said.