The US Treasury official, Josh Frost, is addressing criticisms that the Biden administration has strayed from traditional debt issuance practices. Frost refutes claims of violating guidelines on bill share percentages and emphasizes the normalcy of recent changes, countering perceptions of market manipulation. Janet Yellen, the Treasury Secretary, faces backlash from GOP lawmakers who accuse her of manipulating debt auctions to benefit President Joe Biden, a charge she denies. The political dispute has escalated, with Yellen being targeted by Trump-linked Republicans and facing scrutiny over her debt management strategies.