PM warns voters of 'stark choice'
David Cameron is to tell voters they face a "stark choice" between him and Labour's Ed Miliband, as the election campaign officially gets under way.

Election 2015: Me... and why it's all about you
BBC political editor Nick Robinson gives an update on his progress - and sets out his view on the election campaign which formally begins today.

What to expect when you're electing
The general election campaign is officially under way - here are 10 ways in which it will be different from last time.

Benefit cuts 'not yet decided'
The work and pensions secretary says the Conservatives are not keeping plans for 12bn of benefit cuts secret - saying no final decisions have been made.

Alexander: Labour majority 'doable'
A Labour majority in the general election would be "difficult but doable", the party's election co-ordinator Douglas Alexander says.

SNP backs 50p rate of tax across UK
The SNP will support the introduction of a 50p top rate of income tax across the UK after the general election, the party's conference is told.

EU exit economic self harm - Clegg
Leaving the European Union would be an act of economic "self harm" and could risk the UK recovery, Liberal Democrat leader Nick Clegg says.

Cameron 'would give new leader time'
The Conservatives will have to choose a new leader before the end of the next Parliament if David Cameron wins a second term as PM, Iain Duncan Smith says.

DUP could work with Tories or Labour
DUP leader Peter Robinson says his party could work with either Labour or the Conservatives if there was a hung parliament after the general election.

Unionist pact 'best possible' deal
Ulster Unionist leader Mike Nesbitt says his party's electoral pact with the DUP in four Westminster seats is the "best possible" arrangement.

Introduction
A tour of the Northern Ireland Assembly at Stormont.

Scottish parties begin campaigning
Scotland's political parties take to the streets of the country on the first official day of the General Election campaign.

Introduction
BBC Democracy Live takes you on a tour of the Scottish Parliament.

Battle lines set as campaign begins
Politicians hit the campaign trail in Wales as the starting gun is fired in a hotly-contested race for Number 10.

Introduction
A guide to the National Assembly for Wales.

Budget: The East Midlands reacts
Who are the Budget winners and losers in the East Midlands?

Pre-election Budget with added catapult
A pre-election Budget, but will the catapult energise the Midlands?

Political editors across England
Political analysis from around England

VIDEO: Treasury Committee
The Treasury Committee hears from the Chancellor, George Osborne.

Links to UK political websites
Links to political parties and other useful websites covering UK politics.

Who's who: Cameron's cabinet
Here's a full list of who is doing what job in David Cameron's new cabinet

Ed Miliband's shadow cabinet
The details of Labour leader Ed Miliband's shadow cabinet following the recent reshuffle.

European Parliaments online
Links to other Parliamentary broadcasters

The challenges of election polling
The BBC's David Cowling looks at the challenges facing pollsters during the 2015 general election.

What not to do on the campaign trail
As the general election campaign officially begins, here's a handy guide for would-be MPs on the pitfalls to avoid while on the campaign trail.

Election 2015: How close are you to the political centre?
The centre-ground of politics is the place where elections are won - take the quiz to find out how close you are to the current political centre.

Where will 'winding up' Westminster lead?
Alex Salmond has been enjoying himself recently, doing what seems to come naturally, winding up Westminster.

Farewell to Hague - and 85 other MPs
At least 86 MPs are standing down at the general election, including former Tory leader William Hague and former Prime Minister Gordon Brown - here's a full list

Why do disabled people feel ignored when it comes to voting?
Disabled people are being denied the right to an independent and private vote, charities say. So what are the issues?