During her visit to the United States this week, Tomomi Inada, head of the Liberal Democratic Party's Policy Research Council, is scheduled to meet with a number of leading figures in the US government.
This is the first trip to Washington by a government or ruling party official since the passage of the security-related laws.
With her visit coming at a time certain to draw attention, some within the LDP have speculated that Inada has begun thinking about running for the leadership of the party after Prime Minister Shinzo Abe's current term ends.
The people Inada is scheduled to meet include David Shear, assistant secretary of defence for Asian and Pacific security affairs; former Deputy Secretary of State Richard Armitage; and Christine Lagarde, managing director of the International Monetary Fund.
Inada is giving particular importance in her itinerary to the address she is scheduled to make on Wednesday at the Center for Strategic and International Studies.
To give the speech in English, a language she is not fluent in, Inada has been tutored by a US instructor and is intensively practicing her pronunciation and other elements even while traveling in her car.
"I'll seek understanding for the Abe Cabinet's security policies, as well as for its economic policies, about which there is high interest in the United States," Inada said regarding her address.
Inada holds similar opinions to Abe and has been treated especially warmly, being awarded such posts as state minister in charge of administrative reform in Abe's Cabinet and head of the LDP Policy Research Council.
Members of the Hosoda faction, to which Inada belongs, have started to say she is a future candidate for prime minister and even Inada herself has recently begun making such public statements as "All politicians want to be prime minister."
However, there is also rising envy within the LDP of Inada, who has been elected only four times as a House of Representatives member but already served as a cabinet minister and in one of the top three posts in the party.
One veteran LDP lawmaker spoke coolly of her current trip, saying: "Ms. Inada is viewed in the United States as a historical revisionist. If she can't dispel these concerns, her 'post-Abe' opportunity will fade away."