The phrase "a leading issue in" is correct and usable in written English.
It can be used to refer to a prominent or significant topic within a particular field or context.
Example: "Climate change has become a leading issue in global politics, influencing policy decisions worldwide."
Alternatives: "a major concern in" or "a prominent topic in".
The abortive rebellions dramatized the need to reform Canada's outmoded and constrictive constitution, prompting the "Canadian question" to become a leading issue in British politics.
Along with jobs and rampant violent crime, education was a leading issue in the election, largely because of a controversial and sweeping re-organization of the school district.
The political dustup in Rogers Park, which has roughly the same boundaries as the 49th Ward, is the latest example of how tax increment financing, or TIF, has become a leading issue in the Feb. 22 municipal elections.
The House then passed a bill generally conforming to Cleveland's views on the tariff; but the Senate rejected it, and the tariff became a leading issue in the presidential campaign of 1888.
The recent nuclear leakage accidents have made evacuation a leading issue in engineering emergency management.
The Republican acting governor, Donald T. DiFrancesco, who views property taxes as the leading issue in New Jersey, has advanced a package of bills that would increase the size of rebate checks sent to homeowners each autumn, while sending more state aid to cities and towns, on the theory that municipalities would then have to raise less in local property taxes.
With the economy looming as the leading issue in the presidential race, Mr. Bernanke faces a delicate decision.
And with the financial crisis now the leading issue in the American presidential contest, the Democratic contender, Barack Obama, laid out some fresh economic proposals to deal with the faltering economy, including tax credits for businesses that create jobs at home and a method to allow hard-pressed consumers to tap their retirement accounts without penalty.
Tougher laws and greater oversight have become leading issues in Washington, D.C., a situation highlighted by President Bush's speech on Wall Street two days ago in which he promised to do "everything in our power to end the days of cooking the books".
John Baron was the Guardian Leeds beatblogger and has kept the Northerner in touch with Bramley Baths' progress, Kirkgate Market and other leading issues in Leeds.
The candidates for governor have barely begun debating what both agree will be the leading issues in November: education, taxes, auto insurance and suburban sprawl.
