Accountability to legislature -similarity

Theme 1

Power to reject or block legislation

US 1

Both legislatures can block executive bills.  
in US, the Senate stripped several provision from the 2025 One Big Beautiful Bill Act OBBBA, forcing Trump to accept a narrower package. (Congress rejected proposed Section 899—the "revenge tax"—of the OBBBA)

-this is because constitution grants congress independent law making authority. Even when president supports a bill members of congress possess formal power to amend, delay, reject legislation before it becomes a law, ensuring scrutiny of gov bills. 

UK 1

In the UK, the commons defeated Theresa May’s withdrawal agreement by 230 votes in Jan 2019, the largest gov defeat on record.  

-because parliament, as the sovereign authority over law making, has institutional ability to approve, reject major gov legislation. 

Similarity 1

Structural theory:  

-because legislature’s power to block or reshape executive bills is built into the procedural design of each system, granting chamber the tools that executive cannot strip away.  
This formal mechanism ensure legislative scrutiny and prevent executive overreach and automatic passage of controversial bills. 

Theme 2

Formal removal mechanism 

US2

Both systems have formal mechanisms through which the legislature can move against the executive, though neither has produced a formed removal recently.  

Effectiveness of impeachment demonstrated: Richard Nixon’s resignation in 1974 Watergate scandal: high likelihood of impeachment and conviction forced Nixon to resign without formal vote 

->impeachment function as powerful check on executive, reinforce executive accountability and prevent executive overreach. 

UK 2

In UK, the commons vote of no confidence, though never lost by gov since Callaghan in 1979, acts as a damage on PM authority and often forced resignation.  

2021 vote of no confidence on Boris Johnson post Party gate scandal, saw 41% of Tory MPs voting no confidence in his leadership, damaging his authority as PM and eventual resignation.  

Similarity 2

Rational theory is appropriate because how legislators use removal tools as a strategic cost benefit calculation, weighing political cost of keeping the leader on their party credibility against the cost of forcing them out, with decision turning on whether the leader is a net asset or liability to the faction’s own re-election or policy position.  

->enforcing accountability of executive to the legislative branch.

Theme 3

Committee scrutiny mechanism 

US 3

Both systems have established committee systems that can investigate alleged misconduct without immediately removing PM/President from power. -formal mechanism gives legislator authority to hold executive accountable.  

In US, House Ethics committee investigates members; the 2023 House inquiry into President Biden’s family business dealings, forcing Biden to justify his stance to the public, ensuring democratic accountability. 

UK 3

In UK, commons privileges committee found in June 2023 that Boris Johnson had deliberately misled parliament over Partygate, demonstrate how Parliamentary committee can scrutinise executive misconduct and publicly scrutinise wrongdoing. 

Similarity 3

Structural theory:  

Accountability is maintained through formal oversight measures: role of committees and hold the executive account for any misconduct, reinforcing scrutiny of executive and democratic accountability.